David D. Hsu, Ph.D. / 徐大为,博士

David Hsu focuses his practice on patent preparation, prosecution, and related counseling. Dr. Hsu represents clients in a wide range of industries, including biotechnology, renewable energy, semiconductors, polymer materials, and bioinformatics. His academic background in chemical engineering and work experience provides him with the requisite technical and practical knowledge to be a highly effective advocate for his clients. Dr. Hsu was recognized as one of seven “Up and Coming Lawyers” in 2018 by Law Week Colorado.

Dr. Hsu joined the firm as a law clerk in 2012 while attending law school. Prior to joining the firm, he worked as a senior engineer for the National Renewable Energy Laboratory (NREL) in Golden, Colorado, where he analyzed technical, economic, and sustainability qualities of cellulosic biofuels, solar photovoltaic, and other renewable energy processes. He published widely cited technical papers on biofuels and was frequently an invited speaker on the topic. Before NREL, Dr. Hsu served as a senior process engineer for Intel Corporation in Hillsboro, Oregon, helping develop both front-end and back-end processes for manufacturing next generation microprocessors. His Ph.D. in chemical engineering from the University of California, Berkeley focused on high pressure microplasmas.

Dr. Hsu is a member of the Boulder County Planning Commission. As a member of the Commission, he helps evaluate land use proposals and make recommendations to the County Commissioners. He is also a former member of the Planning Commission for Louisville, Colorado. He had previously been appointed to the city’s Sustainability Advisory Board.

Dr. Hsu is conversant in Mandarin Chinese.


University of Colorado School of Law(2013) Order of the Coif

University of California, Berkeley, Ph.D., Chemical Engineering (2003)

Massachusetts Institute of Technology, B.S., Chemical Engineering; Minor in Chemistry(1998)Editor-in-Chief, The Tech


Colorado (2013)

Court Admissions

U.S. Patent and Trademark Office (2013)

Professional & Community Activities

MIT Educational Council, Member (2005-2012)

City of Louisville (Colorado) Sustainability Advisory Board, Member (2014-2015)

City of Louisville (Colorado) Planning Commission, Commissioner (2016-2017), Reappointed (2018-2019), Vice Chair (2018-2019)

Denver Museum of Nature and Science, Volunteer Exhibit Interpreter