James N. Silverthorn
Patent agent, USPTO registration number 81390, status Active.
- Location
- Sacramento, CA
- On the USPTO roster since
- February 2024
James N. Silverthorn is a USPTO-registered patent agent (registration number 81390), in Sacramento, CA. The registration is active on the current USPTO roster, and James N. Silverthorn has been listed on the roster since February 2024.
Sacramento, CA has 53 registered patent practitioners in all: 38 patent attorneys and 15 patent agents.
Other registered practitioners in Sacramento, CA
- Richard Kwun — Patent attorney, Reg. No. 74517, Bowman and Associates, APC
- Michelle C. Lau — Patent attorney, Reg. No. 57616, Law Office of Michelle Lau
- Robert A. Mayville — Patent attorney, Reg. No. 75853, Law Offices of Gavin M. Hughes
- George W. Mclaughlin — Patent attorney, Reg. No. 31121, Calfironia Franchise Tax Board Legal Branch
- Audrey A. Millemann — Patent attorney, Reg. No. 44942, Weintraub Genshlea and Sproul Law, Corp.
- Robert B. Nguyen — Patent attorney, Reg. No. 53388, Law Offices of Robert B. Nguyen
- John P. O'banion — Patent attorney, Reg. No. 33201, O'Banion and Ritchey LLP
- Rodger Hugo Rast — Patent agent, Reg. No. 45853, O'Banion and Ritchey LLP
All patent attorneys and agents in Sacramento, CA
Patent firms in California · Practitioners by state
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