About Sean.
Sean Lynch is a founding partner at Lynch LLP and a registered patent attorney, recognized for his expertise in patent law, trademark law, and intellectual property law. Based in San Diego, Sean represents clients ranging from startups to multinational corporations, helping them secure, manage, and enforce their intellectual property portfolios in the United States and internationally.
Sean has successfully prosecuted both utility and design patents across mechanical, electrical, software, and design fields, managing U.S. and international filings, including Patent Cooperation Treaty (PCT) applications and coordination with foreign counsel for global protection.
Clients trust Sean for his technical depth, legal acumen, and commitment to transparency. He is known for designing unique solutions to meet the needs of inventors, startups, and established businesses alike — and for delivering predictable, fixed-fee pricing for patent and trademark services.
What Sean works on.
- ◈Patent prosecution (utility & design)
- ◈International filings & PCT
- ◈Trademark prosecution & strategy
- ◈IP portfolio development
Where Sean goes deep.
Pick the consultation that fits your matter.
Booking opens in our scheduling system. Submitting a request does not create an attorney-client relationship — engagement begins after a conflicts check and signed engagement letter.
Sean on the record.
Sean's most recent published writing — practice notes, doctrine explainers, and observations from active matters.
- ◈ PATENTSPatent Strategy for AI CompaniesJUNE 1, 2026
- ◈ PATENTSPatent Portfolio Strategy for Growing Tech CompaniesAPRIL 30, 2026
- ◈ PATENTSPatent Strategy and Series A FundraisingMARCH 13, 2026
- ◈ PATENTSAI Patents in 2026: Filing StrategyJANUARY 13, 2026
- ◈ PATENTSCommon Patent Questions From FoundersNOVEMBER 18, 2025