ZIP 90503
Patent attorneys in ZIP code 90503 · California
ZIP code 90503 in California has 8 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 Law Offices of Don Finkelstein and Irving Keschner.
All practitioners
Woo Soon Choe
Reg. 56726Patent attorney
Torrance, CA · 90503
626-264-3353
William J. Dayton
Reg. 84472Patent agent
Torrance, CA · 90503
424-285-9496
Don Finkelstein
Reg. 20068Patent attorney
Law Offices of Don Finkelstein
Torrance, CA · 90503
310-543-0070
Mehdi Hifai Nasserian
Reg. 48852Patent agent
Torrance, CA · 90503
818-231-0583
Irving Keschner
Reg. 24547Patent attorney
Irving Keschner
Torrance, CA · 90503
310-977-5852
Kendrick P. Lam
Reg. 71490Patent agent
Torrance, CA · 90503
852-915-09858
Maybelline Rivas
Reg. 62728Patent agent
Torrance, CA · 90503
310-940-9697
Donna O. Sai
Reg. 64086Patent attorney
Torrance, CA · 90503
310-542-7520
Common questions
Do patent attorneys in ZIP 90503 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 90503 tend to track the broader California legal market.
How many USPTO practitioners list a ZIP 90503 office?
8 USPTO-registered patent practitioners list a ZIP 90503 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 90503 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 90503-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.