Persoona.ai

Calabasas, California

Patent attorneys in Calabasas

Calabasas, California is home to 14 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include Harbor Freight Tools USA, Inc., DTS, Inc., and S. Isaac Zaghi.

Brian P. Boyce

Reg. 83823
Patent agent

Calabasas, CA · 91302

310-650-0711

Chaney Edmund Cieck

Reg. 52749
Patent attorney

Calabasas, CA · 91302

310-922-0647

Jeffrey N Cutler

Reg. 35486
Patent attorney

Harbor Freight Tools USA, Inc.

Calabasas, CA · 91302

805-233-5172

Craig S Fischer

Reg. 42535
Patent attorney

DTS, Inc.

Calabasas, CA · 91302

818-436-1338

Andrew W. Hays

Reg. 75784
Patent agent

Harbor Freight Tools USA, Inc.

Calabasas, CA · 93004

818-850-9696

Yanning Jiang

Reg. 83495
Patent agent

Calabasas, CA · 91302

626-684-7695

William L Johnson

Reg. 41876
Patent attorney

DTS, Inc.

Calabasas, CA · 91302

818-436-1336

Douglas Norman Larson

Reg. 29401
Patent attorney

Calabasas, CA · 91302

818-517-8734

George S Matula

Reg. 51343
Patent agent

Calabasas, CA · 91302

818-880-5262

Parag Patel

Reg. 50582
Patent attorney

Calabasas, CA · 91302

310-403-5811

Robert D Rapp

Reg. 79177
Patent agent

Harbor Freight Tools USA, Inc.

Calabasas, CA · 91302

747-774-0716

Howard Neal Sommers

Reg. 24138
Patent attorney

Calabasas, CA · 91302

818-222-5439

Robert K Takara

Reg. 63300
Patent attorney

Calabasas, CA · 91302

619-796-2850

Shahrooz Isaac Zaghi

Reg. 55951
Patent attorney

S. Isaac Zaghi

Calabasas, CA · 91302

818-515-0018

Common questions

Do patent attorneys in Calabasas 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 Calabasas tend to track the broader California legal market.
How many USPTO practitioners list a Calabasas office?
14 USPTO-registered patent practitioners list a Calabasas 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 Calabasas practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Calabasas-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.
build 4315ed5 · 2026-05-22 19:33 EDT