Pennsylvania

Patent attorneys in Pennsylvania

Pennsylvania hosts 1,920 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 Pennsylvania. 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 Eckert Seamans Cherin & Mellott, LLC, Riverside Law LLP, and SmithKline Beecham CORP.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Chioma C. Abara

Reg. 75943

Patent attorney

Philadelphia, PA · 19151

267-240-5761

Ali G Abdulhay

Reg. 81775

Patent agent

Wayne, PA · 19087

215-268-3888

Daniel C Abeles

Reg. 25822

Patent attorney

Eckert Seamans Cherin & Mellott, LLC

Pittsburgh, PA · 15219

412-566-1295

Robert Allen Aboud

Reg. 47373

Patent attorney

SmithKline Beecham CORP

Philadelphia, PA · 19101

215-751-4000

Joseph F Aceto

Reg. 50701

Patent attorney

Joseph F. Aceto, Ph.D., Esq

Unionville, PA · 19275-9998

484-880-8428

Gwendolyn R Acker-Wood

Reg. 51027

Patent attorney

Acker Wood Intellectual Property Law LLC

Pittsburgh, PA · 15219

412-486-1038

John M Adams

Reg. 26697

Patent attorney

Price & Adams, P.C.

Pittsburgh, PA · 15227

412-882-7170

Aileen C Addessi

Reg. 33845

Patent attorney

Zelienople, PA · 16063

724-452-4009

Comfort O. Adeyemi

Reg. 82489

Patent agent

Philadelphia, PA · 19143

267-984-2162

Marc S Adler

Reg. 29764

Patent attorney

Mark Adler, LLC

Phoenixville, PA · 19460

267-265-4488

Brij K Agarwal

Reg. 43507

Patent attorney

Eckert Seamans Cherin & Mellott, LLC

Pittsburgh, PA · 15219

412-566-6183

Gunjan Agarwal

Reg. 69661

Patent attorney

Eaton Corporation

Pittsburgh, PA · 15108

412-315-9348

Yousuf U. Ahmed

Reg. 74070

Patent attorney

DLA Piper LLP (US)

Philadelphia, PA · 19103

215-656-2468

Harry K Ahn

Reg. 40243

Patent attorney

Globus Medical, Inc.

Audubon, PA · 19403

610-930-1800

Benjamin A. Ailes

Reg. 79656

Patent agent

McCarter & English LLP

Philadelphia, PA · 19103

215-979-3816

Godfried R Akorli

Reg. 28779

Patent agent

Pittsburgh, PA · 15233

Jeffrey C Aldridge· Jr

Reg. 51390

Patent attorney

Van Court & Aldridge LLP

Philadelphia, PA · 19125

347-470-6620

Andrew Alexander

Reg. 27690

Patent agent

Apollo, PA · 15613

724-727-3500

Michael Paul Alexander

Reg. 50961

Patent attorney

Pittsburgh, PA · 15234

412-310-0338

Ross E Alexander

Reg. 66948

Patent attorney

Flaster Greenberg P.C.

Philadelphia, PA · 19103

215-587-5609

Ali H Allawi

Reg. 70904

Patent agent

Argo AI

Pittsburgh, PA · 15222

412-525-3483

Justin Chando Allen

Reg. 59049

Patent attorney

Riverside Law LLP

West Conshohocken, PA · 19428

215-268-3881

Kathryn R. Allen

Reg. 83910

Patent agent

Lancaster, PA · 17601

347-844-3484

Scott E. Allen

Reg. 77278

Patent agent

Riverside Law LLP

Wayne, PA · 19087

267-331-4461

Scott B Allison

Reg. 38370

Patent attorney

West Chester, PA · 19380

203-273-8601

Lynn J Alstadt

Reg. 29362

Patent attorney

Buchanan Ingersoll & Rooney P.C.

Pittsburgh, PA · 15219

412-562-1632

Deborah M Altman

Reg. 42259

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Michael F. Altman

Reg. 69537

Patent agent

Kenneth Square, PA · 19348

610-444-4780

Curtis R Altmann

Reg. 67206

Patent attorney

Mendelsohn Dunleavy, P.C.

Philadelphia, PA · 19102

215-599-0985

Melany Chidima Amarikwa

Reg. 901262

Limited recognition

University of Pennsylvania Law School

Philadelphia, PA · 19106

909-519-6601

Common questions

Do I need a patent attorney based in Pennsylvania?

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 Pennsylvania-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 Pennsylvania?

1,920 active USPTO-registered patent practitioners list a Pennsylvania 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.