ZIP 94523
Patent attorneys in ZIP code 94523 · California
ZIP code 94523 in California has 7 USPTO-registered patent practitioners listed at addresses inside the ZIP. Every practitioner shown holds an active license to practice before the US Patent and Trademark Office. Local offices include Antero, Tormey & Petrin, PC.
All practitioners
James A Giblin
Reg. 25772Patent attorney
Pleasant Hill, CA · 94523
925-933-2135
Joan K Hishida
Reg. 46773Patent agent
Pleasant Hill, CA · 94523
925-934-0796
Shiraun K. Jacob
Reg. 69502Patent attorney
Antero, Tormey & Petrin, PC
Concord, CA · 94523
832-408-1654
Michael J Petrin
Reg. 50293Patent attorney
Antero, Tormey & Petrin, PC
Pleasant Hill, CA · 94523
925-360-2361
Michael P Prisbylla
Reg. 58866Patent agent
Pleasant Hill, CA · 94523
925-682-1407
Erika Shin-Kashiyama
Reg. 69163Patent attorney
Pleasant Hill, CA · 94523
925-947-3905
Hal R Yeager
Reg. 35419Patent agent
Pleasant Hill, CA · 94523
415-971-4458
Common questions
Do patent attorneys in ZIP 94523 cost more than the national average?
Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in ZIP 94523 tend to track the broader California legal market.
How many USPTO practitioners list a ZIP 94523 office?
7 USPTO-registered patent practitioners list a ZIP 94523 mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.
Can I work with a ZIP 94523 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 94523-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.