Pennsylvania

Patent attorneys in Pennsylvania

Pennsylvania hosts 1,907 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 The Dow Chemical Company, Condo Roccia Koptiw, and n/a.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Charles L Willis

Reg. 31067

Patent attorney

Easton, PA · 18042

610-559-1241

Reid S Willis

Reg. 39429

Patent attorney

The Dow Chemical Company

Collegeville, PA · 19426

610-244-7833

Timothy A. Willis

Reg. 80830

Patent attorney

Condo Roccia Koptiw

Philadelphia, PA · 19103

215-558-5740

Khadija D. Wilson

Reg. 81431

Patent agent

n/a

Philadelphia, PA · 19102

347-740-0807

Roberta R Wilson

Reg. 48614

Patent attorney

DKW PC

Pittsburgh, PA · 15219

412-355-2979

John D. Wilt

Reg. 76110

Patent agent

Volpe and Koenig, P.C.

Philadelphia, PA · 19103

215-255-9187

Alexander D. Winter

Reg. 83709

Patent agent

New Kensington, PA · 15068

724-822-1829

Christopher A. Winter

Reg. 78296

Patent attorney

Reed Smith LLP

Philadelphia, PA · 19103

215-241-7912

Jonathan R Wise

Reg. 56755

Patent attorney

Greenberg Traurig LLP

Philadelphia, PA · 19103

215-988-7850

Peter R Withstandley

Reg. 53784

Patent agent

Siemens Medical Solutions USA, Inc

Malvern, PA · 19355-9998

610-448-6521

Michael R. Witten

Reg. 83198

Patent agent

Goodwin Procter LLP

Philadelphia, PA · 19104

445-207-7915

John Wittenzellner

Reg. 61662

Patent attorney

Williams Simons & Landis PLLC

Philadelphia, PA · 19103

512-543-1373

Elaine J Wizzard

Reg. 55737

Patent agent

Picadio Sneath Miller & Norton, P.C.

Pittsburgh, PA · 15219

412-288-4387

Francis H Wojnicki

Reg. 53786

Patent attorney

State College, PA · 16801-5425

814-237-9570

Richard A Woldin

Reg. 39879

Patent attorney

Philadelphia, PA · 19106-3757

215-592-4545

Arthur L Wolfe

Reg. 28679

Patent agent

Al Wolfe/ Intl Science Service

Bath, PA · 18018-9113

Brett T. Wolfe

Reg. 83792

Patent agent

Dinsmore & Shohl LLP

Pittsburgh, PA · 15222

412-281-5000

Frank A Wolfe

Reg. 29361

Patent attorney

Ford City, PA · 16226

724-763-7125

Joseph W Wolfe

Reg. 73173

Patent attorney

DLA Piper

Philadelphia, PA · 19103

215-656-3359

Phillip Daniel Wolfe

Reg. 77698

Patent attorney

Morgan, Lewis & Bockius, LLP

Philadelphia, PA · 19103

215-963-5454

Thomas C Wolski

Reg. 55739

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Christina S. Wong

Reg. 70328

Patent agent

Philadelphia, PA · 19103

949-290-6396

Samantha S Woo

Reg. 59339

Patent agent

Newtown Square, PA · 19073

650-391-7524

Richard D Wood

Reg. 58114

Patent agent

Wood Solutions, Inc.

Washington Crossing, PA · 18977

215-368-7682

Steven L Wood

Reg. 63176

Patent attorney

Philadelphia, PA · 19103

267-861-7658

Jon L Woodard

Reg. 45515

Patent attorney

Woodard International Law

Erie, PA · 16508

513-252-7422

Hal B. Woodrow

Reg. 32501

Patent attorney

Hal B. Woodrow

Langhorne, PA · 19047

908-655-7449

John Peter Worgul

Reg. 59865

Patent attorney

Feinstein Doyle Payne & Kravec LLC

Pittsburgh, PA · 15219

412-281-8400

George T. Wu

Reg. 62308

Patent attorney

Panitch, Schwarze, Belasario & Nadel

Philadelphia, PA · 19103-7044

215-965-1330

Jibo Wu

Reg. 68098

Patent attorney

Ambler, PA · 19002

215-793-0788

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?

1,907 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.