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 DLA Piper LLP (US), Argus Intellectual Enterprise, and Dinsmore & Shohl LLP.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Nancy N. Endejann

Reg. 50229

Patent attorney

DLA Piper LLP (US)

Philadelphia, PA · 19103-7300

215-656-2490

Beth Anne Endler

Reg. 59295

Patent attorney

Cranberry Township, PA · 16066

Daniel A Enea

Reg. 75479

Patent attorney

Argus Intellectual Enterprise

Philadelphia, PA · 19102

717-322-4779

Chad T Erb

Reg. 81287

Patent agent

Dinsmore & Shohl LLP

Pittsburgh, PA · 15222

412-230-8995

Edith L Erkert

Reg. 58273

Patent agent

Ference & Associates LLC

Pittsburgh, PA · 15143

412-741-8400

Daniel W Ernsberger

Reg. 28568

Patent attorney

Pittsburgh, PA · 15222

412-683-2503

Richard Eskew

Reg. 48874

Patent attorney

Accolade, Inc.

Plymouth Meeting, PA · 19462

347-574-3820

Robert A Esposito

Reg. 65071

Patent attorney

DLA Piper

Philadelphia, PA · 19103

267-303-8105

Matthew J Esserman

Reg. 41536

Patent agent

POLSINELLI PC

Philadelphia, PA · 19103

215-267-3061

Ryan M. Estatico

Reg. 82915

Patent agent

Pittsburgh, PA · 15203

412-925-2188

Christine Roberta Ethridge

Reg. 30557

Patent attorney

Eckert Seamans Cherin & Mellot, LLC

Pittsburgh, PA · 15219

412-566-2180

Jacques L Etkowicz

Reg. 41738

Patent attorney

Buchanan Ingersoll & Rooney

King of Prussia, PA · 19406

610-407-0700

Aaron Robert Ettelman

Reg. 42516

Patent attorney

Radnor, PA · 19087

484-288-9218

Andrew T. Evanich

Reg. 62033

Patent attorney

Andrew T. Evanich, Esq

Woodlyn, PA · 19094

484-480-3128

Billie L Evans

Reg. 54088

Patent agent

Bristol, PA · 19007

213-448-5338

Robert J. Everling

Reg. 74028

Patent attorney

Lansdale, PA · 19446

610-761-5227

John R Ewbank

Reg. 14853

Patent attorney

Lawyer John R. Ewbank

Newtown, PA · 18940-2401

215-579-2752

Martin L Faigus

Reg. 24364

Patent attorney

Caesar Rivise, PC

Philadelphia, PA · 19103

215-567-2010

George H Fairchild

Reg. 56347

Patent agent

Bethlehem, PA · 18020

610-865-0183

Gary J Falce

Reg. 29304

Patent agent

Pittsburgh, PA · 15207

412-461-8390

Joseph R Falcon· III

Reg. 55166

Patent attorney

Barley Snyder

Malvern, PA · 19355

610-889-3697

Julian Falk

Reg. 20526

Patent attorney

Presto, PA · 15142

412-923-1010

Erich M Falke

Reg. 49049

Patent attorney

Baker & Hostetler , LLP

Philadelphia, PA · 19104-2891

215-564-6529

Andrew E Falsetti

Reg. 52879

Patent attorney

Pittsburgh, PA · 15241

412-831-9595

Heather A Faltin

Reg. 62949

Patent attorney

Comcast Cable Comumunications LLC

Philadelphia, PA · 19103-2838

215-286-7510

Robert B Famiglio

Reg. 29305

Patent attorney

Famiglio and Assocs

Media, PA · 19063

610-359-7300

X. Daniel Fang

Reg. 74883

Patent agent

Kennametal, Inc.

Latrobe, PA · 15650-0231

724-539-4701

Glen R. Farbanish

Reg. 50561

Patent attorney

Lutron Electronics, Inc.

Coopersburg, PA · 18036

610-282-7698

Max A. Farino

Reg. 83118

Patent agent

Gibsonia, PA · 15044

412-996-4115

Pauline Farmer-Koppenol

Reg. 58004

Patent attorney

Molecular Devices LLC

Downingtown, PA · 19335

484-593-1854

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.