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, Fox Rothschild LLP, and FMC CORP.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Linda Pingitore

Reg. 30414

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Cara M. Pinto

Reg. 74642

Patent attorney

Pittsburgh, PA · 15212

570-357-2856

Marcia Denise Pintzuk

Reg. 33756

Patent attorney

FMC CORP

Philadelphia, PA · 19103

215-299-6965

Donald R Piper· Jr

Reg. 29337

Patent attorney

Dann, Dorfman, Herrell & Skillman PC

Fort Washington, PA · 19034

215-563-4100

Anthony L Pisano

Reg. 65098

Patent attorney

Dinsmore & Shohl LLP

Pittsburgh, PA · 15222

412-230-8988

Michael F. Piscitelli

Reg. 64313

Patent attorney

Flaster Greenberg PC

Philadelphia, PA · 19462

267-446-3572

Alexander Hall Plache

Reg. 31684

Patent attorney

Saint-Gobain Corporation

Valley Forge, PA · 19482

610-341-7679

Harris A Platt

Reg. 32055

Patent agent

Harris A Platt

Bala Cynwyd, PA · 19004

215-667-7561

Debora Plehn-Dujowich

Reg. 65732

Patent attorney

Eckert Seamans Cherin & Mellott, LLC

Philadelphia, PA · 19102

215-851-8492

Jason M Ploeger

Reg. 76863

Patent agent

Air Products and Chemicals, Inc.

Allentown, PA · 18195

610-481-8745

Gary W Plourde· II

Reg. 58608

Patent agent

Waynesboro, PA · 17268

484-769-6712

Kathleen M. Pointon

Reg. 78146

Patent attorney

Westinghouse Electric Company LLC

Cranberry Township, PA · 16066

412-216-4866

Manny David Pokotilow

Reg. 22492

Patent attorney

Caesar Rivise, PC

Philadelphia, PA · 19103

215-567-2010

Bruce A Pokras

Reg. 32748

Patent attorney

Blazing Dawn Software

Newtown, PA · 18940

908-963-8476

Michael A. Pollock

Reg. 78671

Patent agent

Pollock Patents LLC

Bryn Mawr, PA · 19010

610-520-1329

Sarah R. Pollock

Reg. 79408

Patent agent

Fox Rothschild LLP

Blue Bell, PA · 19422

610-397-7960

Bojan Popovic

Reg. 66737

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Friedrich Popp

Reg. 65333

Patent agent

Southampton, PA · 18966-1952

585-474-3943

James Gerard Porcelli

Reg. 33757

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

John Porrazza· III

Reg. 68126

Patent attorney

Comcast

Philadelphia, PA · 19103

215-286-5992

Joseph Francis Posillico

Reg. 32290

Patent attorney

Fox Rothschild LLP

Philadelphia, PA · 19103

215-299-2902

Lorraine Bohanske Possanza

Reg. 50968

Patent attorney

Sunstein Murphy & Associates P.C.

West Chester, PA · 19382

610-738-7783

Marvin J Powell

Reg. 29840

Patent attorney

Powell Law Associates, LLC

South Coatesville, PA · 19320

610-489-1714

Mary Howard Powell

Reg. 40404

Patent attorney

Powell & Powell, P.C.

Harrisburg, PA · 17101

717-236-6666

John P. Powers

Reg. 70884

Patent attorney

The Powers IP Law Firm

Pittsburgh, PA · 15237

412-444-5651

Joseph Andrew Powers

Reg. 47006

Patent attorney

Duane Morris LLP

Philadelphia, PA · 19103-4196

215-979-1842

Rhea S Prabhu

Reg. 84617

Patent attorney

Ballard Spahr LLP

Philadelphia, PA · 19130

215-665-8500

Nathan James Prepelka

Reg. 43016

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Paul F Prestia

Reg. 23031

Patent attorney

Valley Forge, PA · 19481

610-933-0146

Kevin J Prey

Reg. 52133

Patent attorney

SAP

Newtown, PA · 19073

610-661-8303

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.