ZIP 94552
Patent attorneys in ZIP code 94552 · California
ZIP code 94552 in California has 6 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.
All practitioners
Azariah D Cole-Shephard
Reg. 83238Patent agent
Castro Valley, CA · 94552
510-552-2326
Peter T Liu
Reg. 61590Patent agent
Castro Valley, CA · 94552
510-889-9281
Kathleen L. Peek
Reg. 78545Patent agent
Castro Valley, CA · 94552
925-549-1399
Michael S. Tam
Reg. 83195Patent agent
Castro Valley, CA · 94552
510-828-9715
Qing Xia
Reg. 68375Patent agent
Castro Valley, CA · 94552
919-357-8249
Jie Yang
Reg. 82455Patent agent
Castro Valley, CA · 94552
216-225-3535
Common questions
Do patent attorneys in ZIP 94552 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 94552 tend to track the broader California legal market.
How many USPTO practitioners list a ZIP 94552 office?
6 USPTO-registered patent practitioners list a ZIP 94552 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 94552 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 94552-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.