Texas

Patent attorneys in Texas

Texas hosts 4,044 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in Texas. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Vorys, Sater, Seymour and Pease LLP, Mason and Petruzzi, and Ashurst Perkins Coie US LLP.

Top cities in Texas

All practitioners in Texas

Timothy E. Petrosius

Reg. 82037

Patent agent

Vorys, Sater, Seymour and Pease LLP

Houston, TX · 77010

713-588-7005

James D Petruzzi

Reg. 35644

Patent attorney

Mason and Petruzzi

Houston, TX · 77056

713-840-9993

Stephen Hillier Pettigrew

Reg. 35978

Patent attorney

Denton, TX · 76207

940-262-3255

Andrew T. Pettit

Reg. 71235

Patent attorney

Ashurst Perkins Coie US LLP

Austin, TX · 78701

650-838-4478

Jeffrey A. Pfeifer

Reg. 71768

Patent attorney

Amerson Law Firm PLLC.

Houston, TX · 77063

713-434-6688

Stephen Carl Pfeiffer

Reg. 46212

Patent agent

Law Office of Kimberly Juenger, PLLC

Houston, TX · 77083

281-494-4529

Frank H Pham

Reg. 70941

Patent attorney

Pham Law PLLC

Alief, TX · 77411

281-215-5167

Hanh Thi Pham

Reg. 40771

Patent attorney

Kraton Performance Polymers, Inc

Houston, TX · 77084

281-676-2440

My Thanh Pham

Reg. 51158

Patent attorney

Hewlett-Packard Company

Houston, TX · 77070

281-518-2253

Ngon Duc Pham

Reg. 49042

Patent attorney

Bell Textron Inc.

Fort Worth, TX · 76101

817-280-2899

Tan H. Pham

Reg. 66079

Patent attorney

Total American Services

Houston, TX · 77002

713-483-5052

Phillip B Philbin

Reg. 35979

Patent attorney

Winstead, PC

Dallas, TX · 75201

214-745-5757

Andrew A. Phillips

Reg. 62725

Patent attorney

HID Global Corporation

Austin, TX · 78753

512-468-4301

Caylee M Phillips

Reg. 80752

Patent attorney

Haynes and Boone, LLP

Dallas, TX · 75201

214-651-5627

Jeffrey Jay Phillips

Reg. 51125

Patent attorney

Spencer Fane LLP

Houston, TX · 77056

713-212-2710

Matthew J Phillips

Reg. 61547

Patent attorney

Fort Worth, TX · 76148

214-926-5623

Richard F Phillips· Jr

Reg. 30097

Patent attorney

Seguin, TX · 78156

832-622-4922

Shayne L Phillips

Reg. 65656

Patent agent

Halliburton

Houston, TX · 77042

713-839-3111

Charles Edward Phipps

Reg. 40127

Patent attorney

Locke Lord, LLP

Dallas, TX · 75201

214-740-8441

Quy H Phung

Reg. 61442

Patent attorney

Houston, TX · 77063

713-205-0966

Alexander T. Piala

Reg. 79126

Patent attorney

McDermott Will and Emery

Austin, TX · 78701

512-298-4558

Jayne C Piana

Reg. 48424

Patent attorney

Brown Rudnick LLP - New York, NY

Houston, TX · 77002

832-868-3379

Larissa A Piccardo

Reg. 60448

Patent attorney

Shell Oil Company

Houston, TX · 77546

832-762-2949

Aaron J Pickell

Reg. 60614

Patent attorney

Cronin PLLC

Dallas, TX · 78746

512-703-1444

Jonathan A Picker

Reg. 80774

Patent agent

Cypress, TX · 77429

936-433-7555

William S. Pickett

Reg. 66372

Patent agent

Baker Botts L.L.P.

Houston, TX · 77002

713-229-1461

Constance M Pielech

Reg. 46991

Patent agent

Shell USA, Inc.

Houston, TX · 77079

832-337-2493

Jonathan Michael Pierce

Reg. 42073

Patent attorney

PORTER HEDGES LLP

Houston, TX · 77002

713-226-6694

James Goodwille Pierre· II

Reg. 48637

Patent agent

Houston, TX · 77292

281-861-9603

Eugene G Pierson

Reg. 67359

Patent attorney

Pierson Intellectual Property LLC

Austin, TX · 78731

512-514-6927

Common questions

Do I need a patent attorney based in Texas?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a Texas-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in Texas?

4,044 active USPTO-registered patent practitioners list a Texas office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.