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Doug D. Zhang

Patent Attorney, U.S. District Court of NY, USPTO


Doug is a seasoned US intellectual property attorney with a mechanical engineering background and over 33 years of diverse IP experience ranging from boutique IP law firms, general practice law firms, and a Fortune 50 company. His deep domain expertise has been in U.S. and foreign patent, trademark, copyright, and other related intellectual property matters and disputes.

While working for the Fortune 50 company, Doug managed patent portfolios for its various businesses, including driving strategic and tactical aspects of IP operation, such as helping patent evaluation boards choose the proper protection for IP assets, educating engineers on IP, supporting business M&A activities, studying competitors’ patents to assess risks, preparing and prosecuting patent applications in diverse technical fields in the US and throughout the world to support the growth strategies of these businesses, and defending patents in oppositions and cancellations.

Doug is fluent in Chinese.


Patent Attorney, U.S. District Courts for the Southern and Eastern Districts of New York U.S. Patent and Trademark Office


J.D., Magna Cum Laude, Law Review – New York Law School

Master of Intellectual Property – University of New Hampshire Franklin Pierce School of Law

B.S., Mechanical Engineering – Shanghai Jiao Tong University

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