#1Jinyang Guo
Serves this area from Pittsburg, CA (2 mi)
Patent Attorneys & Agents in Pittsburg, CA
The top-ranked patent attorneys and agents serving Pittsburg, CA are Jinyang Guo, Patricia Tsai and Paul M Thyfault. We list 1776 patent attorneys and agents serving Pittsburg, CA. 30 of the providers shown match an active record from U.S. Patent and Trademark Office, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Patent Attorneys & Agents serving Pittsburg, CA (Contra Costa County). 1776 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked patent attorneys and agents for Pittsburg
#2Patricia Tsai
Serves this area from Pittsburg, CA (2 mi)#3Paul M Thyfault
Serves this area from Pittsburg, CA (2 mi)#4Punita Bhasin
Serves this area from Pittsburg, CA (2 mi)#5Philip E. Hawkyard
Serves this area from Concord, CA (6 mi)#6Peter J. Tormey
Serves this area from Concord, CA (6 mi)#7Angela C. To
Serves this area from Concord, CA (8 mi)#8Brian Alan Schar (CrossPond Law)
Serves this area from Concord, CA (8 mi)#9Marilyn Harper
Serves this area from Concord, CA (8 mi)#10Theodore J Bielen Jr (Bielen, Lampe & Thoeming)
Serves this area from Concord, CA (8 mi)
20 more providers serving this area
- Thomas Raymond Lampe (Bielen, Lampe & Thoeming), Concord, CA (8 mi)
- Tomoyuki Tanaka, Concord, CA (8 mi)
- Jonathan C Tam, Antioch, CA (8 mi)
- Michael V Williamson Jr (Law Office of Michael Williamson), CA
- Shaun X. Xu, Antioch, CA (8 mi)
- Charlotte Marie Rodeen-Dickert (West & Associates, A PC), Walnut Creek, CA (9 mi)
- David D Chung, Walnut Creek, CA (9 mi)
- Eric G Masamori (Law Office of Eric G. Masamori), Walnut Creek, CA (9 mi)
- Eric M Friedman, Walnut Creek, CA (9 mi)
- Javed S M Afzal, Walnut Creek, CA (9 mi)
- Jill C Darsow, Walnut Creek, CA (9 mi)
- Leong Chi Lei (A and J Intrntl Patent Office), Walnut Creek, CA (9 mi)
- Menglu Lin, Walnut Creek, CA (9 mi)
- Richard S Israels, Walnut Creek, CA (9 mi)
- Stuart J West (West & Associates, A PC), Walnut Creek, CA (9 mi)
- W. Eric Webostad, Walnut Creek, CA (9 mi)
- Erika Shin-Kashiyama, Pleasant Hill, CA (11 mi)
- Hal R Yeager, Pleasant Hill, CA (11 mi)
- James A Giblin, Pleasant Hill, CA (11 mi)
- Joan K Hishida, Pleasant Hill, CA (11 mi)
Request quotes
Frequently asked questions
How many patent attorneys and agents serve Pittsburg?
We list 1776 patent attorneys and agents serving Pittsburg, CA: 0 based there and 1776 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which patent attorneys and agents serve Pittsburg?
The top-ranked patent attorneys and agents serving Pittsburg, CA are Jinyang Guo, Patricia Tsai, Paul M Thyfault, Punita Bhasin and Philip E. Hawkyard. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Pittsburg are verified against official records?
10 of the top 10 match an active official record: Jinyang Guo (U.S. Patent and Trademark Office), Patricia Tsai (U.S. Patent and Trademark Office), Paul M Thyfault (U.S. Patent and Trademark Office), Punita Bhasin (U.S. Patent and Trademark Office) and Philip E. Hawkyard (U.S. Patent and Trademark Office), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What is the difference between a patent attorney and a patent agent?
Both are registered with the USPTO to prepare and prosecute patent applications. Patent attorneys are also licensed lawyers and can handle litigation and other legal matters; agents cannot.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .