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 The Webb Law Firm, Drinker Biddle & Reath LLP, and Howson and Howson LLP.

Top cities in Pennsylvania

All practitioners in Pennsylvania

David R Bailey

Reg. 35057

Patent attorney

Philadelphia, PA · 19103-8956

215-564-8956

Hallum O Bailey

Reg. 56093

Patent attorney

Drinker Biddle & Reath LLP

Philadelphia, PA · 19103

215-988-2685

Andrew P. Bainbridge

Reg. 80020

Patent agent

Elizabethtown, PA · 17022

717-371-2031

Mary E Bak

Reg. 31215

Patent attorney

Howson and Howson LLP

Blue Bell, PA · 19422

215-540-9200

William Bak

Reg. 37277

Patent attorney

Howson & Howson LLP

Blue Bell, PA · 19422

215-540-9216

Margaret A Baker

Reg. 45868

Patent agent

Patent Agent

Ardmore, PA · 19003-1925

610-649-1840

Clark S Bakewell

Reg. 71615

Patent attorney

Philadelphia, PA · 19103

978-505-2367

Kent E Baldauf

Reg. 25826

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Kent E Baldauf· Jr

Reg. 36082

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Benjamin M Baldridge

Reg. 75273

Patent agent

Patent Specialties, LLC

Flourtown, PA · 19031

215-247-1227

David T Banchik

Reg. 36439

Patent attorney

Shire Pharmaceuticals, Inc.

Wayne, PA · 19087-5637

484-595-8903

Paul D Bangor· Jr

Reg. 34768

Patent attorney

Thorp Reed & Armstrong, LLP

Pittsburgh, PA · 15219

412-394-7767

Andrew P Baraniak

Reg. 65945

Patent agent

Panitch Schwarze Belisario & Nadel LLP

Philadelphia, PA · 19103

215-965-1330

Michael T Barber

Reg. 67765

Patent attorney

Johnson & Johnson

Spring House, PA · 19477

215-986-1559

Michael B Barboun

Reg. 81660

Patent attorney

Lincoln University, PA · 19352

610-806-3060

Laurie M. Barcia

Reg. 67799

Patent attorney

ACP Patents, LLC

Milford, PA · 18337

570-871-7957

Katherine Pauley Barecchia

Reg. 50607

Patent attorney

Imperva, Inc.

Austin, PA · 78759

512-257-3900

Nicholas A. Barone

Reg. 71953

Patent attorney

K & L Gates

Pittsburgh, PA · 15222

412-848-1236

Antranig Baronian

Reg. 58501

Patent attorney

West Pharmaceutical Services, Inc.

Exton, PA · 19341

610-594-2900

Brandon J. Barr

Reg. 82796

Patent attorney

Volpe Koenig

Philadelphia, PA · 19103

215-568-6400

Alexis Barron

Reg. 22702

Patent attorney

Fox Rothschild LLP

Philadelphia, PA · 19103

215-299-2414

Colin G Barry

Reg. 72579

Patent agent

Penn Valley, PA · 19072

215-301-4713

Fabian Christopher Bartolozzi

Reg. 52598

Patent attorney

Fabian Christopher Bartolozzi

Washington Crossing, PA · 18977

215-262-2995

Gregory P Barton

Reg. 35062

Patent attorney

Pittsburgh, PA · 15211

412-908-9161

Henry E Bartony· Jr

Reg. 34772

Patent attorney

Bartony & Associates, LLC

Butler, PA · 16003-0910

412-253-2610

Anna E. Bartow

Reg. 58645

Patent attorney

Lankenau Instutute for Medical Research

Wynnewood, PA · 19096

610-645-8592

William L Bartow

Reg. 54981

Patent attorney

DLA Piper US LLP

Philadelphia, PA · 19103

215-656-2458

Michael R Bascobert

Reg. 44525

Patent attorney

SAP

Newtown Square, PA · 19073

610-668-0046

Douglas R Basinski

Reg. 51440

Patent attorney

Pittsburgh, PA · 15229

412-366-1203

Marc Benedict Bassler

Reg. 48732

Patent attorney

Law Firm of Allan Fried

Radnor, PA · 19087

267-970-3285

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.