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 Morgan, Lewis & Bockius LLP, Fox Rothschild LLP, and Rogers Castor.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Gary Aaron Hecht

Reg. 36826

Patent attorney

Fox Rothschild LLP

Philadelphia, PA · 19103-3291

215-299-2416

Joseph R. Heffern

Reg. 54160

Patent attorney

Rogers Castor

Ardmore, PA · 19003

610-285-8238

John P Heim· III

Reg. 66270

Patent agent

Clarks Summit, PA · 18411

570-586-0015

Dale Michael Heist

Reg. 28425

Patent attorney

Malvern, PA · 19355

610-644-3228

George Anthony Heitczman

Reg. 25397

Patent attorney

Bethlehem, PA · 18016

610-691-5500

Julie A. Heitzenrater

Reg. 64443

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Gregory B Heller

Reg. 69547

Patent attorney

Young Ricchiuti Caldwell & Heller, LLC

Philadelphia, PA · 19103

267-546-1004

Joseph T Helmsen

Reg. 54163

Patent attorney

DLA Piper LLP

Philadelphia, PA · 19103-7300

215-656-2480

Carl P Hemenway

Reg. 51798

Patent agent

Rohm and Haas Company

Collegeville, PA · 19426

610-244-7109

John L. Hemmer

Reg. 58752

Patent attorney

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103-2921

215-963-4816

Michael B Henderson

Reg. 69038

Patent agent

Temple University Office of University Counsel

Philadelphia, PA · 19122-6086

215-204-6542

Richard Elliot Lee Henderson

Reg. 31619

Patent attorney

Bradford Woods, PA · 15015

724-612-1908

Clara E. Hendricks

Reg. 66320

Patent attorney

McConnellsburg, PA · 17233

703-475-0811

Richard J Henry

Reg. 41499

Patent agent

Concurrent Technologies, Corp.

Johnstown, PA · 15904

814-269-2532

Mary G Henshaw

Reg. 83139

Patent agent

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103

413-575-3662

Stephen M. Hepperle

Reg. 76978

Patent agent

Harrisburg, PA · 17112

540-850-5512

Matthew E. Herd

Reg. 73387

Patent attorney

Lyndell, PA · 19354

610-608-8930

Rachel J Herder

Reg. 73647

Patent attorney

Penn State University Law School- University Park

State College, PA · 16801

814-867-4567

Michael J Herman

Reg. 51289

Patent agent

LK Global

Fogelsville, PA · 18051

480-361-0466

Roger Wayne Herrell· Jr.

Reg. 62228

Patent attorney

University of Pennsylvania

Philiadelphia, PA · 19102

267-924-7506

Roger Wayne Herrell

Reg. 22964

Patent attorney

Dann Dorfman Herrell & Skillman

Fort Washington, PA · 19034

215-563-4100

David W Herring· Jr

Reg. 51069

Patent agent

Agere Systems Inc.

Allentown, PA · 18109

610-712-1815

Brant A. Hershey

Reg. 63195

Patent attorney

Willow Street, PA · 17584

717-786-6108

Kevin P Hershey

Reg. 69312

Patent attorney

Brenntag North America, Inc

Reading, PA · 19605

610-916-3870

Jay M. Herskowitz

Reg. 58101

Patent attorney

Philadelphia, PA · 19123

856-261-7519

Patrick H. Higgins

Reg. 39709

Patent attorney

Eckert Seamans Cherin & Mellott, LLC

Philadelphia, PA · 19102

215-851-8533

John O. Hillman

Reg. 84186

Patent attorney

Duane Morris LLP

Philadelphia, PA · 19103

215-979-1186

William S. Hilton

Reg. 67285

Patent attorney

Design IP, P.C.

Allentown, PA · 18104

610-351-8016

Sophia L Hines

Reg. 81483

Patent attorney

Pittsburgh, PA · 15219

412-325-3318

Mitchell D Hirsch

Reg. 54170

Patent agent

Volpe and Koening, P.C.

Philadelphia, PA · 19103

215-568-6400

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.