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 FMC Corporation, Information Ventures Inc., and Young Basile Hanlon & MacFarlane, P.C..

Bruce Howard Kleinstein

Reg. 28728

Patent attorney

Information Ventures Inc.

Philadelphia, PA · 19102-2100

215-569-2300

Adam D Kline

Reg. 62152

Patent attorney

Young Basile Hanlon & MacFarlane, P.C.

Philadelphia, PA · 19103

248-244-0160

C Frederick Koenig· III

Reg. 29662

Patent attorney

Volpe and Koenig PC

Philadelphia, PA · 19103

215-568-6400

Joshua M. Koenig

Reg. 77071

Patent agent

Volpe & Koenig, PC

Philadelphia, PA · 19103

215-568-6400

Steven Eric Koffs

Reg. 37163

Patent attorney

Duane Morris LLP

Philadelphia, PA · 19103

215-979-1250

Nicholas C Kokkinos

Reg. 76979

Patent attorney

DLA Piper LLP

PHILADELPHIA, PA · 19103-7348

215-656-3300

Robert Arthur Koons· Jr

Reg. 32474

Patent attorney

Drinker Biddle & Reath LLP

Philadelphia, PA · 19103

215-988-3392

Michael A Koptiw

Reg. 57900

Patent attorney

Condo Roccia LLP

Philadelphia, PA · 19103

215-558-5740

Alex E Korona

Reg. 73842

Patent attorney

Sigma Law Group LLC

Philadelphia, PA · 19102

445-447-5291

John C. Kouch· Jr.

Reg. 79632

Patent attorney

Raju LLP

Philadelphia, PA · 19102

267-925-0458

Won J Kouh

Reg. 42763

Patent attorney

Duane Morris, LLP

Philadelphia, PA · 19103-4196

215-979-1581

James J Kozuch

Reg. 39733

Patent attorney

Caesar Rivise, PC

Philadelphia, PA · 19103

215-567-2010

Laura E Krabill

Reg. 41913

Patent attorney

Ballard Spahr Andrews & Ingersoll, LLP

Philadelphia, PA · 19103-7599

215-864-8848

Seth A. Kramer

Reg. 67813

Patent attorney

Fox Rothschild, LLP

Philadelphia, PA · 19103

215-299-2704

Tyler C Krauth

Reg. 70551

Patent agent

Biomeme, Inc.

Philadelphia, PA · 19108

404-786-0718

Leonid Kravets

Reg. 59439

Patent agent

Panitch, Schwarze, Belisario & Nadel

Philadelphia, PA · 19103

215-965-1358

Kelly A Krellner

Reg. 76915

Patent attorney

Dechert, LLP

Philadelphia, PA · 19104

215-994-2019

Danielle C Kucera

Reg. 76080

Patent attorney

Volpe and Koenig, P.C.

Philadelphia, PA · 19103

215-568-6400

Roman Kucharczyk

Reg. 65767

Patent agent

FMC Corporation

Philadelphia, PA · 19104

518-576-7107

Sima Singadia Kulkarni

Reg. 43732

Patent attorney

DLA Piper, LLP

Philadelphia, PA · 19103-7300

215-656-2478

Mark David Kuller

Reg. 31925

Patent attorney

FMC Corporation

Philadelphia, PA · 19104

215-299-6009

Tod A Kupstas

Reg. 54917

Patent attorney

Pierson Ferdinand LLP

Philadelphia, PA · 19103

215-519-2904

Richard E Kurtz

Reg. 19263

Patent attorney

Woodcock Washburn,LLP

Philadelphia, PA · 19104-2891

215-568-3100

Marissa S Kuzirian

Reg. 78983

Patent agent

DLA Piper

Philadelphia, PA · 19103

215-656-2483

Nia E. Kyritsis

Reg. 83851

Patent attorney

Akin Gump Strauss Hauer & Feld LLP

Philadelphia, PA · 19103

215-965-1207

Edward T La Barr

Reg. 64397

Patent attorney

Volpe And Koenig, P.C.

Philadelphia, PA · 19103

215-255-6400

Michael A LaFlame· Jr.

Reg. 62840

Patent attorney

Flaster Greenberg PC

Philadelphia, PA · 19103

215-279-9394

Zachary G. LaFramboise

Reg. 73436

Patent agent

Philadelphia, PA · 19103

925-300-6696

Nicole N Lai

Reg. 62841

Patent attorney

Dilworth Paxson LLP

Philadelphia, PA · 19102

215-575-7000

Alaina J Lakawicz

Reg. 75086

Patent attorney

BakerHostetler

Philadelphia, PA · 19103-7501

215-564-2576

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.