Photo of Hean L. Koo

Hean L. Koo

Washington, DC
F: +1.202.747.3897


  • J.D., George Mason School of Law, 2009
  • B.S., University of Maryland at College Park, 1998
  • Virginia
  • United States Patent and Trademark Office
  • *not admitted in DC; supervised by partners of the firm
Thought Leadership


Hean Koo is an associate in the Intellectual Property Practice Group in the firm's Washington, D.C. office.  He is also the Lead Associate for the firm's Open Source Team.

Areas of Practice

His practice focuses on open source and patent prosecution and client counseling in a variety of fields including computer software, video games, virtual worlds, social media, virtual reality and 3-D imaging, augmented reality, social networks, mobile advertising and mobile payments, medical devices, among others.

In addition to preparing and prosecuting patent applications, Mr. Koo 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 Patent Trial and Appeal Board, IP reviews, non-infringement and invalidity opinions, and litigation support and strategy.

Prior to entering the legal profession, Mr. Koo led a team of biologists that sequenced the model plant Arabidopsis thaliana at a prominent genome research organization. There, he later managed a team of engineers responsible for software and data deliverables for multi-million 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.

Mr. Koo is a contributor and co-author for a number of studies published in major, well-respected, scientific journals, including Nature and Science.

Thought Leadership


Legal Articles

Illegal Judicial Appointments? Constitutional Attacks on Patent and Copyright Decisions, INTELL. PROP. & TECH. L.J., October 2008.

The Asian Equation of Patents and Drugs – Key Factors in Balancing Innovation Cost Recovery and Drug Affordability (parts 1 and 2), PharmAsia News, June 2008.

Scientific Journal Articles

Analysis of 14 BAC sequences from the Aedes aegypti genome: a benchmark for genome annotation and assembly, Genome Biol.; 8 (5):R88 17519023, Co-Authored by Lobo et al, 22-May-2007

Large-scale sequencing of human influenza reveals the dynamic nature of viral genome evolution, 437 Nature 1 162-1 166, Co-Authored by Ghedin, E. et al, 2005

The Genome Sequence of Trypanosoma cruzi, Etiologic Agent of Chagas Disease, 15 Science 409-41 5, Co-Authored by El-Sayed, N.M. et al, 2005

In-Depth View of Structure, Activity, and Evolution of Rice Chromosome 10, 300(5625) Science, 1566-1569, Co-Authored by The Rice Chromosome 10 Sequencing Consortium, 2003

Genome sequence and comparative analysis of the model rodent malaria parasite Plasmodium yoelii yoelii, 41 9 Nature 5 12-5 19, Co-Authored by Carlton, J. et al., 2002

Arabidopsis thaliana genome, 408 Nature special edition dedicated to genome publication; multiple articles, Co-Authored by The Arabidopsis Genome Initiative, 2000

Sequence and analysis of chromosome 2 of the plant Arabidopsis thaliana, 402 Nature 761 -768, Co-Authored by Lin, X. et al., 1999


Recent Legal Developments in Open Source and Strategies and Tools to Manage Risk, November 13, 2014.  Live CLE presentation.

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