Philadelphia, Pennsylvania

Patent attorneys in Philadelphia

Philadelphia, Pennsylvania is home to 496 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include Goodwin Procter LLP, Williams Simons & Landis PLLC, and DLA Piper.

Michael R. Witten

Reg. 83198

Patent agent

Goodwin Procter LLP

Philadelphia, PA · 19104

445-207-7915

John Wittenzellner

Reg. 61662

Patent attorney

Williams Simons & Landis PLLC

Philadelphia, PA · 19103

512-543-1373

Richard A Woldin

Reg. 39879

Patent attorney

Philadelphia, PA · 19106-3757

215-592-4545

Joseph W Wolfe

Reg. 73173

Patent attorney

DLA Piper

Philadelphia, PA · 19103

215-656-3359

Phillip Daniel Wolfe

Reg. 77698

Patent attorney

Morgan, Lewis & Bockius, LLP

Philadelphia, PA · 19103

215-963-5454

Christina S. Wong

Reg. 70328

Patent agent

Philadelphia, PA · 19103

949-290-6396

Steven L Wood

Reg. 63176

Patent attorney

Philadelphia, PA · 19103

267-861-7658

George T. Wu

Reg. 62308

Patent attorney

Panitch, Schwarze, Belasario & Nadel

Philadelphia, PA · 19103-7044

215-965-1330

Taro Yaguchi

Reg. 65885

Patent agent

Omori & Yaguchi USA LLC

Philadelphia, PA · 19103

215-701-6349

Mu Yang

Reg. 73103

Patent attorney

Condo Roccia Koptiw LLP

Philadelphia, PA · 18103

215-558-5719

Stephenie W Yeung

Reg. 48052

Patent attorney

Schnader Harrison Segal and Lewis LLP

Philadelphia, PA · 19103

215-751-2000

Kenichiro K Yoshida

Reg. 37009

Patent attorney

Yoshida & Associates LLC

Philadelphia, PA · 19103

215-599-0604

Alfred W Zaher

Reg. 42248

Patent attorney

Buchanan Ingersoll & Rooney PC

Philadelphia, PA · 19102-2555

215-665-3880

Chad E Ziegler

Reg. 44273

Patent attorney

Flaster Greenberg

Philadelphia, PA · 19103

215-587-5688

Robert F Zielinski

Reg. 34286

Patent attorney

Law Offices of Robert F. Zielinski, LLC

Philadelphia, PA · 19107

215-731-9100

John A Zurawski

Reg. 61524

Patent attorney

Ballard Spahr LLP

Philadelphia, PA · 19103

215-864-8855

Common questions

Do patent attorneys in Philadelphia cost more than the national average?

Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in Philadelphia tend to track the broader Pennsylvania legal market.

How many USPTO practitioners list a Philadelphia office?

496 USPTO-registered patent practitioners list a Philadelphia mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.

Can I work with a Philadelphia practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Philadelphia-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.