ZIP 91307
Patent attorneys in ZIP code 91307 · California
ZIP code 91307 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. Local offices include M.J. Ram & Associates and John J Casparro Patent Svcs.
All practitioners
David J. Bancroft
Reg. 73666Patent attorney
M.J. Ram & Associates
Bell Canyon, CA · 91307
805-222-3023
John Joseph Casparro
Reg. 29139Patent agent
John J Casparro Patent Svcs
West Hills, CA · 91307
818-992-4067
Jonathan R Glicksberg
Reg. 68045Patent agent
West Hills, CA · 91307
818-703-1649
Jayanta K Guha
Reg. 66137Patent agent
West Hills, CA · 91307
818-610-8926
Andrea E. Lopez Giraldo
Reg. 84141Patent agent
West Hills, CA · 91307
818-299-4428
Steven C Patrick
Reg. 40341Patent attorney
M. J. Ram & Associates
Bell Canyon, CA · 91307
805-206-7020
Common questions
Do patent attorneys in ZIP 91307 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 91307 tend to track the broader California legal market.
How many USPTO practitioners list a ZIP 91307 office?
6 USPTO-registered patent practitioners list a ZIP 91307 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 91307 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 91307-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.