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 Morgan, Lewis & Bockius LLP, Chiara F. Orsini, Esquire, and Oshtry and Oshtry.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Chiara F Orsini

Reg. 48744

Patent attorney

Chiara F. Orsini, Esquire

Glenshaw, PA · 15116

412-456-2817

Joel E Oshtry

Reg. 33204

Patent attorney

Oshtry and Oshtry

Philadelphia, PA · 19103

215-568-4040

William E Otto

Reg. 30671

Patent attorney

Law Firm of William E. Otto, Esq.

Murrysville, PA · 15668

724-519-8778

Sean Carter Overton

Reg. 903280

Limited recognition

Penn State Law, The Pennsylvania State University

University Park, PA · 16802

385-315-0269

Christopher J Owens

Reg. 72806

Patent attorney

Leech Tishman Fuscaldo & Lampl, LLC

Pittsburgh, PA · 15219

412-694-7285

Michael L Ozalas

Reg. 27584

Patent attorney

Ozalas and McKinley

Jim Thorpe, PA · 18229

570-325-3616

Bradley J Pacella

Reg. 66146

Patent agent

Highmark, Inc.

Pittsburgh, PA · 15222-3099

412-544-7000

Ross R. Packard

Reg. 70311

Patent agent

Matamoras, PA · 18336

802-310-8052

M Richard Page

Reg. 25299

Patent attorney

FCI USA LLC

Etters, PA · 17319

717-938-7315

Richard Allen Paikoff

Reg. 34892

Patent attorney

Duane Morris LLP

Philadelphia, PA · 19103

215-979-1853

Alicia M Palladino

Reg. 73160

Patent attorney

Goodwin Procter LLP

Philadelphia, PA · 19104

445-207-7800

Donald R Palladino

Reg. 46976

Patent attorney

Covestro LLC

Pittsburgh, PA · 15205-9741

412-413-3820

Tracy U Palovich

Reg. 47840

Patent agent

BakerHostetler

Philadelphia, PA · 19103-7501

215-564-2776

Wenseng Pan

Reg. 57839

Patent attorney

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103-2987

215-988-2710

Sanjay K. Pandey

Reg. 78311

Patent agent

Wayne, PA · 19087

610-986-6449

Ronald L Panitch

Reg. 22825

Patent attorney

Panitch Schwarze Belisario & Nadel LLP

Philadelphia, PA · 19103

215-965-1330

Douglas Panzer

Reg. 74286

Patent attorney

Caesar Rivise, PC

Philadelphia, PA · 19103

215-567-2010

Bernardo Paratore

Reg. 58052

Patent agent

Technology, Patents & Licensing, Inc.

Doylestown, PA · 18901

267-880-1720

Alok A. Parikh

Reg. 71315

Patent attorney

Volpe and Koenig, P.C.

Philadelphia, PA · 19103

215-255-9206

Amit R Parikh

Reg. 65271

Patent attorney

Comcast Cable Communications LLC

Philadelphia, PA · 19103

267-260-2387

Vishal J. Parikh

Reg. 73935

Patent attorney

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103

215-963-5494

Hyejeong Park

Reg. 70145

Patent agent

Philadelphia, PA · 19107

215-413-1104

Joung Kook Park

Reg. 69192

Patent agent

IP Legal Services, LLC

Paoli, PA · 19301

610-640-9350

Linus Y Park

Reg. 45261

Patent attorney

LSI Corporation

Allentown, PA · 18109-9137

610-712-5034

Sunghoon Park

Reg. 81613

Patent attorney

Vople Koenig, P.C.

Philadelphia, PA · 19103

215-568-6400

Henrik D Parker

Reg. 31863

Patent attorney

Media, PA · 19063

610-892-7069

Kevin L Parker

Reg. 62805

Patent agent

Pittsburgh, PA · 15217

412-480-4579

Jonathan C Parks

Reg. 40120

Patent attorney

United States Steel Corporation

Pittsburgh, PA · 15219-2800

412-433-2842

Debra M Parrish

Reg. 38032

Patent attorney

Debera M. Parrish Attorney at Law

Pittsburgh, PA · 15228

412-561-6250

John A Parrish

Reg. 31918

Patent attorney

Law Offices of John A. Parrish

Merion thanks, PA · 19066

610-617-9197

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.