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 Kintner IP, LLC, Duane Morris LLP, and Norris McLaughlin & Marcus, P.A..

Top cities in Pennsylvania

All practitioners in Pennsylvania

Mary Frances Ludwig

Reg. 71619

Patent agent

Kintner IP, LLC

Kintnersville, PA · 18930-0081

215-693-6310

Lee S Lum-Vannucci

Reg. 60491

Patent agent

McDonald, PA · 15057

412-220-2170

Jiazhong Luo

Reg. 59115

Patent attorney

Duane Morris LLP

Philadelphia, PA · 19103-4196

215-979-1809

John Francis Lushis· Jr

Reg. 31850

Patent attorney

Norris McLaughlin & Marcus, P.A.

Allentown, PA · 18104

484-765-2211

Paul D Lux

Reg. 53249

Patent attorney

Philadelphia, PA · 19103

267-241-9260

Aaron A. Mace

Reg. 61812

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Benjamin R. MacLuckie

Reg. 81709

Patent agent

Phoenixville, PA · 19460

610-906-2442

Jeffrey J L Maday

Reg. 53252

Patent attorney

Innovative Patent Law, PLLC

Philadelphia, PA · 19102

215-854-6427

Gregory V Madden

Reg. 64528

Patent agent

Xylem Inc.

Pittsburgh, PA · 15201

878-208-1142

Donna R Maddox

Reg. 34913

Patent attorney

West Chester, PA · 19380

610-316-7803

Cody J Madison

Reg. 80889

Patent attorney

Eckert Seamans et al

Pittsburgh, PA · 15219

412-566-6013

Joseph E Maenner

Reg. 41964

Patent attorney

Maenner & Associates, LLC

Downingtown, PA · 19335

215-275-5595

Barry G Magen

Reg. 51983

Patent attorney

Norristown, PA · 19403

610-279-3141

Komal Magsi

Reg. 75533

Patent agent

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103-2921

215-963-4788

Eric N Mahler

Reg. 44218

Patent attorney

Mahler Shaffer and Pugliese

Kingston, PA · 18704

570-283-1800

Michael D. Maicher

Reg. 75417

Patent attorney

Volpe & Koenig P.C.

Philadelphia, PA · 19103

215-568-6400

Albert F Maier· Jr

Reg. 26761

Patent attorney

Maier and Maier

Freeland, PA · 18224

570-636-1140

William R Majarian

Reg. 41173

Patent attorney

Kennett Square, PA · 19348

610-202-8087

Jamie K Major

Reg. 77186

Patent attorney

Boyertown, PA · 19512

610-914-4921

Joe-Yee Mak

Reg. 81880

Patent agent

RIVERSIDE LAW LLP

Wayne, PA · 19087

610-872-5683

Lynn Ann Malinoski

Reg. 38788

Patent attorney

DePuy Sythes

West Chester, PA · 19025

610-719-5230

Brian Samuel Malkin

Reg. 48329

Patent attorney

Ference & Associates LLC

Pittsburgh, PA · 15143

412-741-8400

Frank Paul Mallak

Reg. 36590

Patent agent

Export, PA · 15632

412-576-3200

W Lee Maloy

Reg. 42834

Patent agent

Genaera Corporation

Plymouth Meeting, PA · 19462

610-941-5242

Thomas R Mancini

Reg. 50157

Patent attorney

ViroPharma Incorporated

Exton, PA · 19341

610-321-6753

Jill Michele Netka Mandelblatt

Reg. 37878

Patent agent

DLA Piper LLP

Philadelphia, PA · 19103-7300

215-656-2482

Gary D Mangels

Reg. 55424

Patent attorney

Johnson Matthey Inc.

Wayne, PA · 19089-1998

610-971-3037

Nancy Z Manion

Reg. 59697

Patent agent

Export, PA · 15632

724-392-4526

Ralph F Manning

Reg. 26943

Patent attorney

Tucker Arensberg PC

Pittsburgh, PA · 15222

412-594-5540

Randy M Manning

Reg. 44899

Patent agent

Lemoyne, PA · 17043

717-761-1421

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.