Pennsylvania

Patent attorneys in Pennsylvania

Pennsylvania hosts 1,907 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 Dinsmore & Shohl LLP, Baker & Hostetler LLP, and Saxton & Stump, LLC.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Kathryn N. Valentine

Reg. 80213

Patent attorney

Dinsmore & Shohl LLP

Pittsburgh, PA · 15222

412-230-8985

Samuel Maurice Valla

Reg. 43966

Patent attorney

Baker & Hostetler LLP

Philadelphia, PA · 19104-2891

215-568-3100

Russell L. Van Duyne

Reg. 84659

Patent agent

Wallingford, PA · 19086

215-266-8285

Meghan A Van Leeuwen

Reg. 45612

Patent attorney

Saxton & Stump, LLC

Harrisburg, PA · 17112

717-941-1217

Eric Huston Vance

Reg. 47151

Patent attorney

Woodcock Washburn Kurtz MacKiewicz and Norris LLP

Philadelphia, PA · 19103

215-568-3100

Ryan D. VanFossen

Reg. 80229

Patent agent

Philadelphia, PA · 19123

609-410-2972

Renaud J Vann

Reg. 83725

Patent attorney

Elliott Greenleaf, P.C.

Blue Bell, PA · 19422

215-977-1000

James Vannucci

Reg. 58636

Patent agent

Mc Donald, PA · 15057-3524

412-220-2170

David S. VanVliet

Reg. 71738

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Thomas S Vaseliou

Reg. 75473

Patent agent

Philadelphas, PA · 19103

321-223-3092

Benjamin A Vastine

Reg. 64422

Patent attorney

Braskem America, Inc.

Pittsburgh, PA · 15219

412-208-8100

Anthony L. Venezia

Reg. 48382

Patent attorney

Ryder, Mazzeo and Konieczny LLC

Colmar, PA · 18915

215-997-0248

Ronald J Ventola· II

Reg. 44387

Patent attorney

Panitch Schwarze Belisario & Nadel LLP

Philadelphia, PA · 19103

215-965-1390

Angela Verrecchio

Reg. 54510

Patent attorney

Akin Gump Strauss Hauer & Feld, LLP

Philadelphia, PA · 19103

215-965-1286

John P Veschi

Reg. 39058

Patent attorney

Rockstar Consortium

Fogelville, PA · 18051

214-354-2365

Andrew Veter

Reg. 57742

Patent attorney

Dynamics Inc.

Cheswick, PA · 15024

724-274-6484

Peter A Veytsman

Reg. 45920

Patent attorney

Comcast

Philadelphia, PA · 19103

215-286-4226

Patrick J Viccaro

Reg. 27842

Patent attorney

Allegheny Technologies Incorporated

Pittsburgh, PA · 15222-5479

412-394-2839

David H Vickrey

Reg. 30697

Patent attorney

FMC Corporation

Philadelphia, PA · 19103

215-299-6211

Erik N Videlock

Reg. 53722

Patent attorney

Pepper Hamilton LLP

Philadelphia, PA · 19103

215-981-4027

Katherine R Vieyra

Reg. 47155

Patent attorney

Volpe & Koenig PC

Philadelphia, PA · 19103

215-255-9226

Paul T Villanova

Reg. 71241

Patent agent

East Stroudsburg, PA · 18302

908-890-0018

John M. Viola

Reg. 83591

Patent agent

Wayne, PA · 19087

201-655-9603

Christopher V. Vitale

Reg. 48013

Patent attorney

AMREP Corporation

Havertown, PA · 19083

610-487-0901

Eugene A Vittone· II

Reg. 60186

Patent attorney

Bentleyville, PA · 15314

724-986-6470

Helen H. Vogelbacker

Reg. 67760

Patent agent

Drexel Hill, PA · 19026

215-837-7823

Mark T. Vogelbacker

Reg. 58877

Patent attorney

Eckert Seamans

Philadelphia, PA · 19102

215-851-8504

Frederick G Vogt

Reg. 70115

Patent attorney

Iovance Biotherapeutics, Inc.

West Norriton, PA · 19403

610-715-7577

Marina Volin

Reg. 52328

Patent attorney

Caesar Rivise Bernstein Cohen and Pokotilow LTD

Philadelphia, PA · 19103

215-567-2010

Joanne M Volosky

Reg. 63676

Patent agent

Parata Systems LLC

Munhall, PA · 15120

412-657-3293

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?

1,907 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.