For an engineer or product designer, understanding the specific patent status provides direct insight into design freedom and competitive intelligence. A patent’s current stage dictates the level of legal risk, what can be publicly disclosed, and how to position a new product. Mistaking a published application for a granted patent could lead to building a product that will infringe, resulting in costly redesigns or litigation. Conversely, recognizing that a competitor’s patent is only at the PCT application stage reveals a long timeline before any enforceable rights exist, creating a window of opportunity for market entry or the development of alternative, non-infringing solutions. This knowledge transforms intellectual property from a legal abstraction into a practical guide for technical and strategic decision-making.
Each patent status carries a distinct set of possibilities and limitations described in detail below. The “patent pending” status, for example, allows a company to market an invention and deter copycats while the application is still under review. A “granted patent” shifts the focus to enforcement and marking products with the patent number to secure full damages against infringers.
Key Takeaways
- PCT application enables global patent filing strategy.
- Published applications provide early disclosure for prior art.
- A granted patent confers legal rights for enforcement.
- Understand differences in legal patent status and protection scope.
- Follow systematic process from priority to grant efficiently.
The PCT Application as an International Pathway
A Patent Cooperation Treaty (PCT) application serves as an international mechanism for patenting inventions across multiple jurisdictions.
This pathway allows inventors to secure their intellectual property rights in several countries through a single application, which simplifies the initial steps in protecting innovations globally. By filing a PCT application, applicants effectively postpone the high costs associated with filing in individual countries while retaining the option to pursue patents later on in different markets. The PCT has been adopted by 155 contracting states, which increases its importance as a strategic tool for international business and trade.
The PCT application process bifurcates into two main phases: the international phase and the national phase. During the international phase, applicants receive an International Search Report (ISR) that outlines potential prior art. This process enables inventors to evaluate the viability of their inventions before incurring additional expenses in foreign patent offices. Once the ISR is received, applicants can decide in which member states to pursue their patent rights, allowing for strategic market entry decisions.
An important aspect of the PCT system is also its unifying feature, which aggregates data and promotes information sharing among member states, leading to enhanced opportunities for technology licensing.
The early international filing date provided by the PCT is advantageous because it establishes priority, allowing inventors to claim their invention dates before later filings in national jurisdictions.
The traditional approach: consider filing a PCT application if you anticipate wanting patent rights in multiple countries, as it maximizes your options and provides essential time to assess commercial viability before committing to national filings.
Expert tip: strategically use the Chapter II demand for International Preliminary Examination to obtain a positive patentability report before entering the national phase.
Many applicants file a PCT application, receive the initial search report and written opinion, and then simply wait for the 30-month deadline to enter the national phase. An expert approach, however, treats the international phase as a dry run for actual examination. If the initial written opinion raises objections, instead of waiting to fight the same battle in ten different countries, you can file a “Chapter II demand.” This allows you to submit arguments and claim amendments directly within the PCT system under Article 34. The goal is to resolve the examiner’s objections and persuade them to issue a positive International Preliminary Report on Patentability (IPRP). A favorable IPRP is a powerful tool; it can be used to accelerate examination and increase the likelihood of allowance in many national offices through the Patent Prosecution Highway (PPH) program, saving immense time and money by solving the core patentability issues once, at a centralized level.
(refer to the big comparison table below for all the PCT, pending patent, published patent and granted patent comparison)
The Pending Patent Status
A pending patent is a patent application that has been formally filed with a national or regional patent office and is awaiting a final decision. During this period, the application is under review by a patent examiner who determines if the invention meets the legal standards for patentability, such as novelty and non-obviousness.
This examination phase involves a formal dialogue between the applicant and the examiner, where issues are addressed through office actions and responses.
The entire period from the initial filing until the application is either granted or abandoned is known as the pending state.
The primary effect of this patent status is that it allows the applicant to mark products with the notice “patent pending.” This designation warns competitors that an application for the invention exists and that exclusive rights may be granted in the future. A pending patent provides no immediate right to stop others from making or selling the invention; it is not an enforceable legal instrument. However, once the application is published, it may establish provisional rights, which can allow the owner to seek damages for infringing activities that took place during the pending period, but only after the patent is officially granted. The claims defining the invention’s scope are also subject to change throughout this examination period.
Expert tip: strategically use continuation applications to keep your invention’s subject matter in a pending state, even after an initial patent is granted.
Before you pay the issue fee for an allowed application, file a continuation application. This new application inherits the priority date of the original but remains pending and open for examination. This creates a powerful strategic advantage: it can allow you to pursue a different set of claims if a competitor launches a product that tries to design around your first patent’s claims. You can draft new claims in the continuation, supported by your original disclosure, that are specifically designed to cover that competitor’s product. This tactic transforms a static patent into a dynamic offensive tool, creating a “picket fence” of protection around your core technology and making it significantly harder for others to operate in your space.
(refer to the big comparison table below for all the PCT, pending patent, published patent and granted patent comparison)
Definition of Published Patent Application and Its Role in Prior Art
A published patent application refers to a patent application that has been exposed to the public domain, generally 18 months after the initial filing date. This publication includes the details outlined in the application, such as claims, drawings, and descriptions.
Many jurisdictions require that applications be published to maintain transparency and inform the public on advancements in technology. This publication serves as a critical communication tool for researchers, competitors, and potential licensees in the industry.
One of the primary roles of a published patent application is to establish prior art: prior art is any evidence that your invention already exists, which can be critical when determining the novelty of a patent. Once a patent application is published, it adds to the documented knowledge base that others must reference when filing their own patent applications.
The publication of a patent does not imply that it has been granted; thus, it does not provide legal protection for the applicant’s ideas until a patent is granted. This distinction is important for businesses considering entering markets based on published applications.
Tip: always monitor published patents in your industry to stay aware of technological advancements and competitive threats. To optimize their intellectual property management, applicants should maintain a robust portfolio review system that assesses the value and relevance of each patent, considering shifts in technology and market conditions. Regularly updating this strategy can enhance flexibility and responsiveness in innovation management.
(refer to the big comparison table below for all the PCT, pending patent, published patent and granted patent comparison)
The Granted Patent and Its Enforceable Rights
A granted patent status represents a legal recognition by a governmental authority that an invention is novel, non-obvious, and has utility. Upon grant, the inventor obtains exclusive rights to the invention, typically for a duration ranging from 15 to 20 years, depending on the jurisdiction. This protection prohibits others from making, using, selling, or distributing the patented technology without the inventor’s permission.
The exclusive nature of these rights allows the patent holder to control the commercial landscape surrounding their invention.
The enforceability of a granted patent means that the patent holder has clear recourse against unauthorized use. Violation of a granted patent can lead to legal action, where the patent owner may seek remedies such as injunctions or monetary damages. Additionally, in some jurisdictions, a successful infringement suit can result in treble damages—three times the actual damages incurred—further emphasizing the power of a granted patent as a competitive tool in the market.
A granted patent is indispensable for those seeking competitive protection, while a PCT application is suitable for early-stage development and market evaluation.
(refer to the big comparison table below for all the PCT, pending patent, published patent and granted patent comparison)
The Patent Status Timeline
A patent progresses through a series of states from its initial application to the end of its life. These stages reflect the status of the patent application or the granted patent in the records of the relevant patent office, such as the United States Patent and Trademark Office (USPTO).
Pre-Grant States: The Application Process
The journey of a patent begins with the filing of an application, which then undergoes a thorough examination process. During this pre-grant phase, the application can be in one of the following states:
- Provisional application: an initial, less formal application that establishes a filing date for the invention. This allows the inventor to claim “patent pending” status for one year while they refine the invention or seek funding.
- Non-provisional application: the formal patent application that is examined by the patent office. This application must contain a detailed description of the invention and specific claims that define the scope of the protection sought.
- International (PCT) application: the Patent Cooperation Treaty (PCT) provides a unified procedure for filing a single patent application to seek protection in a large number of countries simultaneously. An application filed under the PCT is called an “international application” or “PCT application.” It’s important to note that a PCT application itself does not result in a granted “international patent,” as there is no such thing. Instead, it simplifies the process of seeking patent protection in multiple countries. The PCT application has two main phases: the “international phase” and the “national phase.” During the international phase, a single application is filed, and an international search is conducted. To proceed toward the grant of a patent in specific countries, the applicant must then enter the “national phase,” which involves filing necessary documents and fees with the individual patent offices of the desired countries. This typically must be done within 30 months from the initial priority date, giving applicants more time to decide where to seek protection and to delay costs.
- Patent pending: this patent status applies once a patent application (including a provisional, non-provisional, or PCT application during its international phase) has been filed. It indicates that an invention is the subject of a pending patent application but does not yet have granted rights.
- Under examination: after filing, a patent examiner reviews the non-provisional application to ensure it meets the requirements for patentability, such as being novel, useful, and non-obvious. This stage often involves communication between the applicant and the examiner, known as “office actions” and responses. When a PCT application enters the national phase, it is also examined by the national or regional patent office according to their specific laws and procedures.
- Published application: many patent applications are published 18 months after the earliest filing date, making the details of the invention publicly available. PCT applications are also typically published after this period.
- Withdrawn application: an applicant may decide to voluntarily withdraw their application before a final decision is made by the patent office.
- Abandoned application: an application can become abandoned if the applicant fails to respond to a requirement from the patent office within the specified time frame, such as not replying to an office action or failing to pay required fees. Abandonment can be unintentional, unavoidable, or intentional. In some cases, an unintentionally abandoned application can be revived. A PCT application will be considered abandoned if the applicant does not enter the national phase in at least one member state before the deadline.
Post-Grant States: The Granted Patent
Once the patent office determines that the invention is patentable, the patent is granted, and it enters the post-grant phase. The states during this period include:
- Issued or granted patent: the patent has been officially granted, and the patent holder now has the exclusive right to prevent others from making, using, selling, or importing the patented invention for a set period.
- Active: a granted patent is considered active as long as it is in force. This requires the payment of periodic maintenance fees.
- Enforceable: an active patent is enforceable, meaning the patent holder can take legal action against infringers.
Inactive and Expired States
A patent’s life eventually comes to an end, at which point it enters the public domain. The states associated with the end of a patent’s term or its premature termination include:
- Lapsed or expired for non-payment of Fees: if the required maintenance or renewal fees are not paid, the patent will lapse and become unenforceable. The terms “lapsed” and “abandoned” are sometimes used interchangeably for patents that are no longer in force due to failure to pay fees.
- Expired: a patent has a limited term, typically 20 years from the earliest filing date of the application. Once this term is over, the patent expires and the invention becomes part of the public domain, free for anyone to use.
- Revoked or invalidated: a granted patent can be challenged in court or through specific administrative proceedings at the patent office. If the challenge is successful, the patent may be revoked or invalidated.
Patent Status Full Comparison
Here is a full comparison table detailing the differences between a PCT application, a pending patent, a published patent, and a granted patent, based on the previously listed criteria:
Legal Status & Enforceability
| PCT Application | Pending Patent | Published Patent | Granted Patent | |
| Current legal status: is it an application, a publication, or a legally enforceable right? | An international application that initiates the process of seeking patent protection in multiple countries. | An application that has been filed with a national or regional patent office but has not yet been granted or abandoned. | A pending application whose technical details have been made publicly available by a patent office. | A legally enforceable intellectual property right granted by a national or regional patent office. |
| Enforceable rights: does it grant the owner the right to sue for infringement and stop others from making, using, or selling the invention? | No enforceable rights It is a filing mechanism, not a right. | No A pending patent is not directly enforceable and cannot be used to sue for infringement while it is pending. | No direct enforceable rights But may confer provisional rights to seek reasonable royalties for infringement that occurs after publication. | Yes It grants the owner the exclusive right to exclude others from making, using, selling, or importing the invention. |
| Provisional rights: are there any rights to claim royalties for infringement that occurs before the patent is granted? | Not directly But once it enters the national phase and is published by a national office, it may establish a basis for provisional rights in that country. | Only after the application is published The “pending” status itself does not confer these rights. | Yes, in many jurisdictions The owner may be entitled to reasonable royalties from an infringer after the patent grants, for infringing activities that occurred post-publication. | NA Full enforceable rights begin from the date of grant. |
| Deterrent effect: how effectively does it discourage potential infringers? | Moderate It signals a serious intent to seek multinational patent protection, which can deter competitors. | Moderate The “patent pending” notice warns competitors that a patent may issue, and they could be liable for infringement retroactively to the publication date. | Moderate to high Public disclosure of the invention puts competitors on notice of the specific technology for which protection is sought. | High It is a legally enforceable right, and infringement can lead to significant financial damages, injunctions, and other legal remedies. |
| Guarantee of grant: is the eventual grant of a patent guaranteed? | No It is subject to substantive examination in each national office where protection is sought. | No The application must undergo and pass a substantive examination by the patent office. | No Publication is an administrative step and does not guarantee that the patent will be granted. | NA The patent has already be |
Procedural & Timeline
| PCT Application | Pending Patent | Published Patent | Granted Patent | |
| Stage in patent process: where does it fall in the overall patent lifecycle (e.g., filing, examination, grant)? | An early, international phase that precedes examination by individual national or regional patent offices. | The stage between filing and a final decision (grant or abandonment). It includes the examination period. | A milestone within the “pending patent” stage, typically occurring 18 months after the earliest filing date. | The final stage of a successful patent application, conferring legal rights. |
| Governing body: which organization or national office is responsible for its processing (e.g., WIPO, USPTO, EPO)? | The World Intellectual Property Organization (WIPO) and its designated Receiving Offices and International Searching Authorities. | The specific national or regional patent office where the application was filed (e.g., USPTO, EPO). | The specific national or regional patent office where the application is pending. | The specific national or regional patent office that granted the patent. |
| Next steps for applicant: what actions are required from the applicant to advance the process? | Enter the “national phase” by filing applications in individual countries or regions before the deadline (typically 30/31 months). | Respond to office actions from the patent examiner, pay required fees, and prosecute the application to allowance. | Continue to prosecute the application by responding to office actions until a final decision is reached. | Pay periodic maintenance or renewal fees to keep the patent in force. |
| Timeline to grant: what is the typical duration of this stage? | The international phase lasts up to 30 or 31 months from the priority date, after which the national phase begins. | The entire pending period, from filing to grant, can take several years (e.g., an average of 32 months in the U.S.). | Publication occurs 18 months from the priority date; the time from publication to grant can be 1-3+ years. | NA The patent term is typically 20 years from the earliest filing date. |
| Associated deadlines: are there critical deadlines for future actions (e.g., entering the national phase)? | Yes A critical deadline (typically 30/31 months from the priority date) to enter the national phase in desired countries. | Yes Deadlines to respond to office actions (typically 3-6 months) to avoid abandonment. | Yes Same as a pending patent; deadlines for responding to office actions continue after publication. | Yes Deadlines for paying maintenance fees (e.g., at 3.5, 7.5, and 11.5 years in the U.S.). |
| Examination patent status: has the application undergone substantive examination by a patent office? | No substantive examination for patentability, but an International Search Report and Written Opinion on patentability are issued. | It is either awaiting or currently undergoing substantive examination by a patent examiner. | It is either awaiting or undergoing substantive examination. Publication is a separate, earlier step. | Yes It has successfully completed substantive examination and was found to meet all requirements for patentability. |
Scope & Geography
| PCT Application | Pending Patent | Published Patent | Granted Patent | |
| Geographic coverage: does it apply to a single country, a region, or a multitude of countries? | Provides a potential path to protection in over 155 member countries. It is not a worldwide patent itself. | Applies only to the specific country or region where the application was filed (e.g., a U.S. pending patent covers only the U.S.). | Applies only to the jurisdiction of the publishing patent office. | Applies only to the country or region that granted the patent. |
| Scope of protection: how is the breadth of the invention’s protection defined and determined? | The potential scope is defined by the claims in the application, which will be examined later in the national phase. | The potential scope is defined by the claims, which are subject to amendment and narrowing during examination. | The potential scope is defined by the claims as published, which are still subject to amendment. | The legal scope of protection is precisely defined by the granted claims. |
| Nature of protection: is it a placeholder for a priority date, a pending application in specific countries, or an exclusive right? | It is a streamlined filing procedure and a placeholder that delays the deadline for filing in multiple countries. | It is a pending application in a specific country, establishing a priority date and allowing the use of “patent pending.” | It is a publicly disclosed pending application, which may establish provisional rights. | It is a legal, exclusive right to prevent others from practicing the invention. |
| International applicability: does it serve as a basis for seeking patent protection in other countries? | Yes This is its primary purpose. | Yes, if filed within 12 months of a priority application It can be used to claim priority for filings in other countries (including a PCT application). | Same as a pending patent | No A granted patent in one country does not automatically provide rights in another. Separate applications must be filed. |
Outro
The interplay between PCT applications, published patents, and granted patents underscores their significance in safeguarding innovations and enhancing competitive advantage in today’s economy.
As organizations position themselves in a globally competitive market, the management of intellectual property becomes key.
By making the right decisions at each stage of the patent application process, inventors can not only protect their inventions but also unlock valuable opportunities in technology licensing and R&D collaboration, ultimately driving progress and success in their respective fields.
Related Topics
- International Patent Treaties: understanding agreements that facilitate patent protection across multiple countries.
- National Phase Entry Requirements: criteria for entering national phases in different jurisdictions.
- Patent Examination Procedures: overview of how different countries examine patent applications.
- Prior Art Searches: methods to assess existing technologies that could impact patentability.
- Patent Maintenance Fees: understanding costs associated with maintaining a granted patent’s validity.
- Geographical Considerations in Patenting: factors influencing patent strategy based on market locations.
- Patent Infringement Litigation: overview of processes and considerations in patent disputes.
- Alternative Patent Strategies: exploring options beyond traditional patenting, such as trade secrets.
- Open Innovation Practices: collaborative approaches to innovation that may involve patent sharing.
- Technology Transfer Agreements: mechanisms for transferring technology rights between entities.
- Global Market Trends in Patenting: analysis of how global economic factors influence patent filings.
FAQ
What is a PCT application?
A PCT (Patent Cooperation Treaty) application serves as an international pathway for filing patents. It allows an applicant to seek protection in multiple countries with a single application process.
What is a Published Patent Application and what role does it play in prior art?
A published patent application is a disclosure of the invention that occurs before the patent is granted. It enters the public domain and can be considered prior art against other patent applications.
What constitutes a Granted Patent Status and what rights does it give?
A granted patent provides enforceable rights to the patent holder, allowing them to exclude others from making, using, or selling the invention. This protection typically lasts for 20 years from the filing date.
What is the general process flow from priority to grant?
The process typically follows this sequence: Priority date, PCT application filing, national phase entry, examination, and finally, grant of the patent. Each step is crucial for obtaining patent rights.
How does prior art impact the patent application process?
Prior art can be any evidence that an invention was known before the patent filing date. It may affect the patentability of an application and is critically important during examination by patent offices.
What role does a granted patent status play in technology licensing?
A granted patent serves as a legal asset that can be licensed to others, providing a source of revenue while granting rights to use or commercialize the invention. This is integral for monetizing innovations.
What is the difference between a published patent application and a granted patent?
A published application is a filing whose text has been made public, usually 18 months after the earliest filing or priority date, but it gives no enforceable rights. A granted patent has passed examination and lets the owner exclude others. Both are public documents, and only the grant is enforceable.
What does patent pending mean?
That a patent application has been filed and has not yet been granted or abandoned. It gives no right to stop others, but it warns competitors that rights may follow. Using the words when no application exists can be illegal in some countries, including the US.
Can I sue for infringement while my patent is pending?
No, only a granted patent can be enforced. After grant, some countries allow compensation for use after publication, provided the granted claims match the published ones. Ask a patent attorney how this works in each country.
How long does a design patent last?
In the US, 15 years from the grant date for applications filed on or after May 13, 2015, and 14 years from grant for earlier filings. There are no maintenance fees, and the term cannot be renewed.
How can I tell whether a granted patent is still in force?
Check that its term has not run out, usually 20 years from the earliest filing date for utility patents, and that maintenance or renewal fees were paid. In the US, utility patent fees are due 3.5, 7.5 and 11.5 years after grant. Then check legal events in the national register or Espacenet, since a patent can also be revoked or invalidated.
What is the status of a PCT application after filing?
During the international phase it is a PCT application: it is searched, published and can undergo an optional preliminary examination. To obtain a patent, it must enter the national or regional phase, usually 30 months after the priority date, or 31 at the European Patent Office. No patent is granted before that.
Is there such a thing as an international patent?
No. A PCT application simplifies filing in many countries but ends without a patent. Patents are granted by national offices or regional offices such as the European Patent Office, and each applies only in its own territory.
How do I check the status of a PCT application?
Search the application number in WIPO PATENTSCOPE for the international phase documents. After national phase entry, check each national or regional office separately, because each examines and decides on its own.
What does a provisional application give me?
A filing date and the right to use patent pending for 12 months in the US. It is not examined and never becomes a patent by itself. Within 12 months you must file a non-provisional or PCT application to claim its date.
What other statuses can an application have?
Allowed: approved, with fees due before grant. Abandoned: the applicant stopped responding or paying, though some abandoned applications can be revived. Withdrawn: the applicant pulled it back. Refused: the office finally rejected it.
Can I use an invention described in a published patent application?
Publication alone creates no enforceable right, so use is not infringement at that point. If a patent is granted with claims that cover your product, you may owe damages from grant, and in some countries from publication. Read the claims, not the abstract, monitor the status before investing, and ask a patent attorney.
Is a granted patent valid worldwide?
No. Patents are territorial: a US patent covers making, using, selling or importing in the US only. For other markets you need patents granted there, either nationally or through a regional office.
What is a patent family and why does it matter for status?
A patent family is the set of applications filed in different countries for the same invention, sharing a priority date. The status of each member can differ: granted in one country, pending in another, refused in a third. Check each member in Espacenet or the national registers.
How long does it take to get a patent granted?
Often two to four years from filing (!), but it varies by country, technology and how quickly the applicant answers office actions. Many offices offer fast-track programs for eligible applications.
Glossary of Terms Used
Computed Tomography (CT): a medical imaging technique that uses X-rays and computer processing to create cross-sectional images of the body, allowing for detailed visualization of internal structures and tissues. It enhances diagnostic capabilities by providing three-dimensional representations from two-dimensional data.
Initial Public Offering (IPO): a process through which a private company offers its shares to the public for the first time, allowing it to raise capital from public investors while becoming publicly traded on a stock exchange.
Public Domain: a legal status indicating that works are free from copyright restrictions, allowing anyone to use, modify, and distribute them without permission or payment. This status can arise from expiration of copyright, explicit dedication by the creator, or lack of copyright eligibility.
Unique Selling Point (USP): a distinctive feature or benefit that sets a product or service apart from competitors, aimed at attracting customers by addressing specific needs or preferences.
United States Patent & Trademark Office (USPTO): federal agency responsible for granting patents and registering trademarks in the United States, promoting innovation and protecting intellectual property rights. It examines applications, issues patents, and maintains a database of registered trademarks.
Work in Progress (WIP): items that are partially completed in a production process, including raw materials, labor, and overhead costs incurred up to a certain point. These assets are not yet finished goods and are essential for tracking production efficiency and inventory management.
