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 Mendelsohn Dunleavy, P.C., Volpe and Koenig, P.C., and Panitch Schwarze Belisario & Nadel LLP.

Top cities in Pennsylvania

All practitioners in Pennsylvania

Marvin R Dunlap

Reg. 29527

Patent attorney

Allison Park, PA · 15101

412-487-2429

Kevin J Dunleavy

Reg. 32024

Patent attorney

Mendelsohn Dunleavy, P.C.

Philadelphia, PA · 19102

215-599-0606

Jonathan M Dunsay

Reg. 65760

Patent attorney

Volpe and Koenig, P.C.

Philadelphia, PA · 19103

215-568-6400

Erin M Dunston

Reg. 51147

Patent attorney

Panitch Schwarze Belisario & Nadel LLP

Philadelphia, PA · 19103

215-965-1291

Paul E DuPont

Reg. 27438

Patent agent

Phoenixville, PA · 19460

610-983-0795

Thomas J Durling

Reg. 31349

Patent attorney

Flaster/Greenberg, P.C.

Conshohocken, PA · 19428

215-279-9902

Wayne John Dustman

Reg. 33870

Patent attorney

Glazosmithkline CORP

Collegeville, PA · 19426

215-932-8796

Eugene Francis Dwyer

Reg. 22418

Patent agent

Pittsburgh, PA · 15205

412-922-6579

Dmitry Dymarsky

Reg. 74008

Patent attorney

Baker & Hostetler LLP

Philadelphia, PA · 19104

215-564-2584

John F A Earley· III

Reg. 31350

Patent attorney

Harding, Earley, Follmer & Frailey, P.C.

Valley Forge, PA · 19482-0750

610-935-2300

Trent A Echard

Reg. 72331

Patent attorney

Strassburger McKenna Gutnick & Gefsky

Pittsburgh, PA · 15222

412-281-5423

Chantal F Edde

Reg. 73696

Patent agent

Morgan, Lewis & Bockius LLP

Philadelphia, PA · 19103-2921

215-963-5656

Bradley Thomas Edgington

Reg. 77575

Patent attorney

Fox Rothschild LLP

Pittsburgh, PA · 15222

412-394-5597

Thomas J Edgington

Reg. 34324

Patent attorney

K&L Gates LLP

Pittsburgh, PA · 15222-2613

412-355-8303

Zachary S Edmonds

Reg. 70628

Patent attorney

Philadelphia, PA · 19102

267-844-2014

Tifani M. Edwards

Reg. 62109

Patent attorney

The Dow Chemical Company

Collegeville, PA · 19426

610-244-6298

Matthew T. Eggerding

Reg. 58747

Patent attorney

EQT Corporation

Pittsburgh, PA · 15222

412-553-5786

Christopher Egolf

Reg. 27633

Patent attorney

Wayne, PA · 19087

610-293-9171

Kurt L Ehresman

Reg. 50758

Patent attorney

CV Patent & Tech Law LLC

Mechanicsburg, PA · 17050

717-317-7213

Christian D Ehret

Reg. 69743

Patent attorney

The Webb Law Firm

Pittsburgh, PA · 15222

412-471-8815

Edward A Ehrlacher

Reg. 59055

Patent agent

Crane NXT

Malvern, PA · 19355

484-790-3620

Jeffrey L Eichen

Reg. 41496

Patent attorney

Streamlight, Inc.

Eagleville, PA · 19403

610-680-2490

Kenneth R Eiferman

Reg. 51647

Patent attorney

Baker & Hostetler, LLP

Philadelphia, PA · 19103

215-568-3100

Alexander Eisenberg

Reg. 83056

Patent agent

Philadelphia, PA · 19122

301-602-8943

Dianne B Elderkin

Reg. 28598

Patent attorney

Akin Gump Strauss Hauer & Feld LLP

Philadelphia, PA · 19103

215-965-1340

Ragi A I Elias

Reg. 67772

Patent attorney

Panitch Schwarze Belisario & Nadel

Philadelphia, PA · 19103

215-965-1221

Simon J. Elliott

Reg. 54083

Patent attorney

Teva Pharmaceuticals

West Chester, PA · 19380

610-738-6294

Jackson D. Ellis

Reg. 81944

Patent agent

State College, PA · 16801

240-818-7251

John J Elnitski· Jr

Reg. 39968

Patent attorney

Bellefonte, PA · 16823

814-355-7646

Kevin D Else

Reg. 38130

Patent attorney

Law Firm of Kevin Else, LLC

Media, PA · 19063

484-885-0810

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.