Awards & Rankings 06.04.26
Pillsbury’s Standout Performance in 2026 Chambers USA Rankings Underscores Continued Excellence Across Industries and Disciplines
Firm Earned Recognition Across 60 Practice Areas, Including 26 National Rankings
Hean is very communicative and understands our business incredibly well.
Hean Koo focuses his practice on patent prosecution and IP counseling in a variety of sectors, including computer software, blockchain, AI, machine learning, digital medicine, retail point-of-sale (POS) systems, software relating to retail touch points, wireless communication systems, medical devices and haptic-enabled devices.
In addition to preparing and prosecuting patent applications, Hean has experience with a wide range of patent-related matters including re-issue applications, ex parte and inter partes reexamination requests, appeals before the U.S. Patent and Trademark Office’s Board of Patent Appeals and Interferences, IP reviews, non-infringement and invalidity opinions, and litigation support and strategy. Hean also counsels clients on a wide range of open-source matters, including source code audits and open-source policies.
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Prior to entering the legal profession, Hean led a team of biologists that sequenced the model plant Arabidopsis thaliana at a prominent genome research organization. He later managed a team of engineers responsible for software and data deliverables for multimillion-dollar contracts. In this capacity—along with his team—he designed, developed and implemented software, relational databases and directories for storing, mining, displaying and managing terabytes of genomic data.
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Education
J.D., Intellectual Property, George Mason University School of Law, 2009
B.S., Biology, University of Maryland, 1997
Admissions
Virginia
U.S. Patent and Trademark Office