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 McNeil Consumer Healthcare, Sawgrass Technologies INC, and Janssen Research & Development, LLC.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Jinhuang Wu

Reg. 53800

Patent agent

Norristown, PA · 19403

610-630-4441

David W. Wynn

Reg. 59952

Patent agent

McNeil Consumer Healthcare

Fort Washington, PA · 19034

215-273-8219

Jiyun Xu

Reg. 63080

Patent agent

Macungie, PA · 18062

Ming Xu

Reg. 53802

Patent agent

Sawgrass Technologies INC

Malvern, PA · 19355

610-827-7071

Xiaoxiao Xue

Reg. 69896

Patent agent

Janssen Research & Development, LLC

Spring House, PA · 19477

215-589-2066

Taro Yaguchi

Reg. 65885

Patent agent

Omori & Yaguchi USA LLC

Philadelphia, PA · 19103

215-701-6349

Ni Yan

Reg. 67927

Patent attorney

Johnson Matthey Inc.

Wayne, PA · 19087-1998

610-971-3094

Amy E. Yanek

Reg. 76322

Patent agent

Lutron Electronics Co., Inc

Coopersburg, PA · 18036

484-224-6657

Che Ming Yang

Reg. 56756

Patent attorney

Berwyn, PA · 19312

610-889-0856

Mu Yang

Reg. 73103

Patent attorney

Condo Roccia Koptiw LLP

Philadelphia, PA · 18103

215-558-5719

Ruth Y. Yang

Reg. 65186

Patent attorney

West Chester, PA · 19380

610-363-5681

Robert J Yarbrough

Reg. 42241

Patent attorney

Media, PA · 19063

610-891-0668

Noah C. Yeagley

Reg. 83751

Patent agent

Carlisle, PA · 17015

570-394-6372

Charles M Yeomans· V

Reg. 72293

Patent attorney

Dinsmore & Shohl LLP

Pittsburgh, PA · 15222

412-288-5873

Stephenie W Yeung

Reg. 48052

Patent attorney

Schnader Harrison Segal and Lewis LLP

Philadelphia, PA · 19103

215-751-2000

Cynthia J Yializis

Reg. 58497

Patent attorney

Fox Rothschild, LLP

Pittsburgh, PA · 15222-3155

412-394-5349

Hao Yin

Reg. 61760

Patent attorney

GSK

Collegeville, PA · 19426

215-360-2480

Michele K Yoder

Reg. 41562

Patent agent

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Kevin W Yoegel

Reg. 70185

Patent attorney

Paoli, PA · 19301

Hyunjoe Yoo

Reg. 903314

Limited recognition

Penn State Law, The Pennsylvania State University

University Park, PA · 16802

603-277-8855

David S Yoon

Reg. 69489

Patent attorney

Ambler, PA · 19002

215-962-9546

Michael Timothy York

Reg. 48054

Patent agent

New Kensington, PA · 15068

248-504-1143

Kenichiro K Yoshida

Reg. 37009

Patent attorney

Yoshida & Associates LLC

Philadelphia, PA · 19103

215-599-0604

William Charles Youngblood

Reg. 50524

Patent attorney

American Regent, Inc.

Norristown, PA · 19403

631-772-3508

Elizabeth R. Youngkin

Reg. 68531

Patent agent

Pittsburgh, PA · 15213

484-347-7090

Hanjen Yu

Reg. 79864

Patent agent

K&L Gates LLP

Pittsburgh, PA · 15222-2613

412-355-2844

Wei Yu

Reg. 75617

Patent attorney

Dentons Cohen & Grigsby P.C.

Pittsburgh, PA · 15222

412-297-4716

Eric J Yurinko

Reg. 77096

Patent agent

K & L Gates

Pittsburgh, PA · 15222

412-355-6705

Peter Kraft Zacharias

Reg. 62204

Patent attorney

CNH Industrial America LLC

New Holland, PA · 17557

717-239-9772

Alfred W Zaher

Reg. 42248

Patent attorney

Buchanan Ingersoll & Rooney PC

Philadelphia, PA · 19102-2555

215-665-3880

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.