Cardinal Intellectual Property, Inc. is a United States intellectual property services firm headquartered in Evanston, Illinois. The company provides comprehensive patent and trademark searching, competitive monitoring, managed docketing, and legal support services to corporate IP departments, law firms, educational institutions, and government agencies.
Cardinal serves as a key contractor to the United States Patent and Trademark Office (USPTO), where it has been selected to conduct PCT (Patent Cooperation Treaty) prior art searches and prepare preliminary examination opinions across all technical subject areas, alongside delivering document classification support. The firm also serves 91 of the Am Law 100 law firms and numerous Fortune 500 enterprises.
The company maintains a 100% U.S.-based research workforce of more than 150 research professionals, over half of whom hold advanced degrees including Masters, Ph.D.s, or J.D.s. Cardinal does not outsource its software engineering or research workflows, adhering to law-firm-grade confidentiality, data protection, and operational security standards.