About
Ayan Roy-Chowdhury is a Principal at Fish & Richardson in Washington, DC. He helps clients in the United States and internationally protect inventions in electrical and computer engineering, computer science, software, mechanical engineering, and medical devices. His patent practice covers complex technologies including telecommunications, artificial intelligence, blockchain, semiconductors, network security, autonomous vehicles, cloud computing, and mobile hardware and software.
Roy-Chowdhury earned a J.D. cum laude from Georgetown University Law Center, a Ph.D. and an M.S. in Electrical and Computer Engineering from the University of Maryland, and a B.S. in Electronics and Telecommunications Engineering from Jadavpur University. His combined legal and engineering education provides a strong foundation for patent prosecution, portfolio strategy, technical analysis, and work involving advanced communications and computing technologies.
Roy-Chowdhury helps clients obtain and expand standard essential patent portfolios involving ETSI 3GPP, Wi-Fi, and video coding technologies. He also provides patent opinions and portfolio analysis, coordinates with counsel in major jurisdictions, handles post-grant work before the Patent Trial and Appeal Board, and supports litigation teams. Before practicing law, he worked as a telecom software engineer and later as principal engineer at a satellite networking startup.
Ayan Roy-Chowdhury works with individual inventors, startups, multinational organizations, and Fortune 100 companies. He has authored technical publications, reviewed engineering journal articles, served on international technical conference committees, and is an inventor on two U.S. patents involving network security and cryptographic hash chains. He also mentors professionals entering the legal industry and speaks on intellectual property topics, combining engineering depth with practical patent counseling.
Law Office Affiliations
- Principal, Fish & Richardson P.C.
- Member, District of Columbia Bar
- Member, Sigma Xi 6 the Scientific Research Society
- Member, Institute for Electrical and Electronics Engineers (IEEE)
- Member, Golden Key International Honor Society
Licensed State
- District of Columbia
Education
- Georgetown University Law Center
Juris Doctor (JD) Cum Laude - University of Maryland
Doctor of Philosophy (PhD) in Electrical and Computer Engineering - University of Maryland
Master of Science (MS) in Electrical and Computer Engineering - Jadavpur University
Bachelor of Science (BS) in Electronics and Telecommunications Engineering
Awards & Badges

- Copyright
- Intellectual Property Litigation
- Patent
- Trade Secrets
- Trademark
- Litigation





