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 Panitch Schwarze Belisario & Nadel LLP, Kennametal Inc., and Wilcox Law Group.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Charles F Wieland· III

Reg. 33096

Patent attorney

Panitch Schwarze Belisario & Nadel LLP

Philidelphia, PA · 19103

215-965-1305

John A. Wilaj· Jr

Reg. 74116

Patent attorney

Kennametal Inc.

Latrobe, PA · 15650

330-509-9740

James L Wilcox

Reg. 30234

Patent attorney

Wilcox Law Group

Parkside, PA · 18944

267-283-7591

Clinton H Wilkinson

Reg. 43267

Patent agent

Law Offices of Charles A. Wilkinson

Bethlehem, PA · 18016-1426

610-867-9700

Nathaniel C Wilks

Reg. 62867

Patent attorney

Eckert Seamans Cherin and Mellott LLC

Pittsburgh, PA · 15219

412-566-6993

Lindsay B. Willett

Reg. 68553

Patent attorney

L. Beth Willett, Esq.

Kennett Square, PA · 19348

810-964-2927

Daniel Williams

Reg. 35738

Patent attorney

Forkston Township, PA · 18629

570-833-4127

Darrell E Williams

Reg. 45222

Patent agent

Darrell E. Williams, Esq.

Bridgeville, PA · 15017

412-983-3901

James R Williams

Reg. 43268

Patent attorney

New Castle, PA · 16105

724-944-3452

Tyler D Williams-Amaker

Reg. 84014

Patent agent

Philadelphia, PA · 19144

267-266-7217

John K Williamson

Reg. 27845

Patent attorney

K&L Gates LLP

Pittsburgh, PA · 15222-2613

412-355-6438

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

Greenberg Traurig, LLP

Philadelphia, PA · 19103

443-852-8868

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

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.