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 Caesar Rivise, PC, Clarke Gallagher Barbiero Amuso & Glassman Law, and Paul & Paul.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Erik D. Slobe

Reg. 77773

Patent attorney

Swissvale, PA · 15218

860-315-3405

Scott M Slomowitz

Reg. 39032

Patent attorney

Caesar Rivise, PC

Philadelphia, PA · 19103

215-567-2010

Yevgeniy Slutskiy

Reg. 73541

Patent agent

Philadelphia, PA · 19103

646-250-3088

Andrew J. Slutsky

Reg. 82647

Patent attorney

Clarke Gallagher Barbiero Amuso & Glassman Law

Fort Washington, PA · 19034

215-633-1890

Alex Russell Sluzas

Reg. 28669

Patent attorney

Paul & Paul

Philadelphia, PA · 19103

215-568-4900

Andrea D Small

Reg. 54859

Patent attorney

FMC Corporation

Philadelphia, PA · 19103

215-299-6870

Christopher G. Smith

Reg. 59768

Patent attorney

Penn Valley, PA · 19072

512-799-2706

David L Smith

Reg. 30592

Patent attorney

McNees Wallace & Nurick LLC

Harrisburg, PA · 17108-1166

717-232-8800

George Anthony Smith· Jr

Reg. 24442

Patent attorney

Howson and Howson LLP

Blue Bell, PA · 19422

215-540-9200

George K Smith

Reg. 43135

Patent attorney

Aventis Pasteur

Swiftwater, PA · 18370

570-839-5428

Jessica A Smith

Reg. 47908

Patent agent

Kirkpatrick & Lockhart LLP

Pittsburgh, PA · 15222

412-355-8992

Nancy A Smith

Reg. 37943

Patent attorney

Lincoln Financial Group

Radnor, PA · 19087

484-583-1704

Philip Neil Smith

Reg. 59919

Patent agent

Lutron Electronics Co., Inc.

Coopersburg, PA · 18036

610-282-6325

Stuart I Smith

Reg. 42159

Patent attorney

The Belles Group, P.C.

Philadelphia, PA · 19103

703-244-8133

Thomas D Smith

Reg. 53619

Patent attorney

Glaxo Smith Kline

King of Prussia, PA · 19406-0939

610-270-5408

William Patrick Smith

Reg. 34931

Patent attorney

Spilman Thomas & Battle, PLLC

Pittsburgh, PA · 15219

412-325-1115

Michael J. Smithula

Reg. 72467

Patent attorney

Monroeville, PA · 15146

412-853-8272

Mitchell A Smolow

Reg. 43140

Patent attorney

Shavertown, PA · 18708

570-714-4000

Alexandra L. Smythe

Reg. 76515

Patent agent

IDE Group

Newtown Square, PA · 19073

678-429-6612

Richard Morris Snead

Reg. 33554

Patent agent

Thomson Reuters

Philadelphia, PA · 19130

215-218-8071

Michael F Snyder

Reg. 58347

Patent attorney

Volpe & Koenig, P.C.

Philadelphia, PA · 19103

215-568-6400

Nicol Chung Pang So

Reg. 56447

Patent agent

CommScope

Horsham, PA · 19044

215-323-1149

Neha Shailesh Sohoni

Reg. 902470

Limited recognition

University of Pennsylvania Law School

Philadelphia, PA · 19106

904-710-3159

Simon O. Sokeye

Reg. 79128

Patent agent

Merion Station, PA · 19066

240-353-6645

Robert I. Solomon

Reg. 61761

Patent attorney

Law Offices of Robert Solomon

Richboro, PA · 18954

267-994-1749

Leea S Somersalo

Reg. 68409

Patent attorney

Koivula & Somersalo LLC

Philadelphia, PA · 19146

240-490-0171

Jason T Somma

Reg. 61526

Patent attorney

Saxton & Stump LLC

Lancaster, PA · 17601

412-430-0502

Samuel Son

Reg. 82648

Patent attorney

Philadelphia, PA · 19107

267-399-0247

Thomas M Sossong

Reg. 48463

Patent attorney

Temple University Health System

Philadelphia, PA · 19111

888-369-2427

Jake W. Soumis

Reg. 61823

Patent attorney

Crown Holdings, Inc.

Philadelphia, PA · 19154-4599

215-698-5079

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.