Thousand Oaks, California

Patent attorneys in Thousand Oaks

Thousand Oaks, California is home to 66 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 Amgen Inc., Amgen, and Amgen Inc.

Richard Steven Koppel

Reg. 26475

Patent attorney

Thousand Oaks, CA · 91362

805-523-1580

Sarah M. Korman

Reg. 60105

Patent attorney

AMGEN INC.

Thousand Oaks, CA · 91320-1799

805-447-4061

Lois Marie Kwasigroch

Reg. 35579

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320-1799

805-447-6265

Thomas F. Lavery

Reg. 73021

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-7259

Eunice Yoojin Lee

Reg. 74217

Patent agent

Amgen

Thousand Oaks, CA · 91320

516-729-6604

Elsa Djuardi Lemoine

Reg. 45963

Patent attorney

Amgen Inc

Thousand Oaks, CA · 91320

805-447-3278

Susan Elaine Lingenfelter

Reg. 41156

Patent attorney

Amgen Inc

Thousand Oaks, CA · 91320

805-313-3010

Charles C Liu

Reg. 53226

Patent agent

Thousand Oaks, CA · 91320

Lauren M. Mangano Drenkard

Reg. 76779

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

555-120-80047

Randolph N Mohr

Reg. 45590

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-8949

Kimberlin L Morley

Reg. 35391

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-5375

Erica S Olson

Reg. 55927

Patent attorney

Amgen Inc., Law Department

Thousand Oaks, CA · 93120

805-447-3626

Richard Vaughn Person

Reg. 42991

Patent attorney

Amgen, Inc

Thousand Oaks, CA · 91320

805-447-3299

Robert Kenneth Peterson

Reg. 36892

Patent attorney

Thousand Oaks, CA · 91359

818-597-0817

Angela L. Purcell

Reg. 60642

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320-1799

805-313-2511

Robert T Ramos

Reg. 37915

Patent attorney

Thousand Oaks, CA · 91320

805-409-7157

Christopher M. Ray

Reg. 72180

Patent attorney

Thousand Oaks, CA · 91362

805-492-8821

G. Prabhakar Reddy

Reg. 47890

Patent attorney

Amgen, Inc.

Thousand Oaks, CA · 91320

805-447-3288

Jeffrey S Schoenwald

Reg. 60602

Patent agent

Thousand Oaks, CA · 91320

805-844-3347

Sylvia YY Shen

Reg. 78273

Patent agent

Thousand Oaks, CA · 91362

626-278-1904

Dennis J. Smith

Reg. 69885

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320-1799

808-447-9045

Margareta K. Sorenson

Reg. 71601

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

215-206-0402

Ronald S Tamura

Reg. 43179

Patent attorney

Thousand Oaks, CA · 91360

949-338-6090

Megan N. Thobe

Reg. 75453

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-313-7318

Mui A Tran

Reg. 80255

Patent agent

Amgen Inc.

Thousand Oaks, CA · 91320-1789

805-881-8389

Paul B Tran

Reg. 41565

Patent agent

Amgen, Inc.,

Thousand Oaks, CA · 91320

805-447-9768

Letitia A. Walker

Reg. 68726

Patent attorney

Amgen

Thousand Oaks, CA · 91320-1799

805-313-3679

Stuart L Watt

Reg. 32511

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-2154

Christopher W West

Reg. 74724

Patent attorney

Amgen, Inc

Thousand Oaks, CA · 91320

919-906-5228

Wendy A Whiteford

Reg. 36964

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-1008

Common questions

Do patent attorneys in Thousand Oaks 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 Thousand Oaks tend to track the broader California legal market.

How many USPTO practitioners list a Thousand Oaks office?

66 USPTO-registered patent practitioners list a Thousand Oaks 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 Thousand Oaks practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Thousand Oaks-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.