Chicago, Illinois

Patent attorneys in Chicago

Chicago, Illinois is home to 1,862 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 Lee Sullivan Shea & Smith LLP, Olson & Cepuritis, Ltd., and Global IP Law Group, LLC.

Arne M Olson

Reg. 30203

Patent attorney

Olson & Cepuritis, Ltd.

Chicago, IL · 60606-3103

312-580-1180

Ragnar Richard Olson

Reg. 58684

Patent attorney

Global IP Law Group, LLC

Chicago, IL · 60603

312-241-1500

Jordan T. One

Reg. 74085

Patent agent

Greenberg Traurig, LLP

Chicago, IL · 60601-1732

312-456-6587

Oliver T Ong

Reg. 58456

Patent attorney

Marshall, Gerstein & Borun, LLP

Chicago, IL · 60606

312-474-6300

Micah R Onixt

Reg. 47834

Patent attorney

Piper Marbury Rudnick and Wolfe

Chicago, IL · 60601

312-368-2141

Anna A. Onley

Reg. 73876

Patent attorney

Chicago, IL · 60625

773-960-2476

David D. Osinski

Reg. 82060

Patent agent

Hanley, Flight, and Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

David N Oskin

Reg. 58863

Patent attorney

Keeper Security, Inc.

Chicago, IL · 60607

708-515-4062

John J Oskorep

Reg. 41234

Patent attorney

Chicago, IL · 60611

312-222-1860

Sherri L Oslick

Reg. 52087

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

Michael Robert Osterhoff

Reg. 46973

Patent attorney

K&L Gates LLP

Chicago, IL · 60602-4207

312-807-4205

Philip F. Oweimrin

Reg. 81387

Patent agent

Chicago, IL · 60646

773-595-0631

Patrick J. Owens

Reg. 80250

Patent attorney

Arnold & Porter

Chicago, IL · 60602

312-583-2441

Dallin W. Packard

Reg. 81817

Patent attorney

Lee Sullivan Shea & Smith LLP

Chicago, IL · 60661

312-754-9298

Sun Y Pae

Reg. 61401

Patent attorney

Klintworth & Rozenblat IP LLP

Chicago, IL · 60612-1577

773-570-3330

Preetam B. Pagar

Reg. 57684

Patent attorney

Motorola Solutions, Inc.

Chicago, IL · 60661

847-350-8796

Fatimeh D Pahlavan

Reg. 78064

Patent attorney

Legal Intelligence to Entrepreneurs LLC

Chicago, IL · 60603

312-620-1406

Chad A Pahnke

Reg. 63568

Patent attorney

McAndrews, Held, & Malloy, Ltd.

Chicago, IL · 60661

312-775-8000

Alaina Y. Pak

Reg. 80368

Patent agent

Chicago, IL · 60606

240-370-6796

Ekaterina Pak

Reg. 78196

Patent agent

Chicago, IL · 60611

201-281-9042

Jaeyoung Pak

Reg. 72428

Patent attorney

Lee Sullivan Shea & Smith LLP

Chicago, IL · 60661

312-754-9232

Larry J Palguta

Reg. 29575

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

Ann C Palma

Reg. 68168

Patent attorney

HYDY Inc.

Chicago, IL · 60606

312-292-9471

Erick J. Palmer

Reg. 64456

Patent attorney

Honigman LLP

Chicago, IL · 60654

312-429-6065

Mark A Pals

Reg. 44279

Patent attorney

Kirkland & Ellis LLP

Chicago, IL · 60654

312-862-2000

John S Paniaguas

Reg. 31051

Patent attorney

Clark Hill PLC

Chicago, IL · 60601

312-985-5559

Aliza Panjwani

Reg. 82357

Patent agent

Husch Blackwell

Chicago, IL · 60606

630-890-6210

Bernard A Panone

Reg. 46978

Patent attorney

Knightsbridge Sltns LLC

Chicago, IL · 60661

586-322-3880

John P Paredes

Reg. 57364

Patent attorney

Amin Talati & Wasserman

Chicago, IL · 60661

312-784-1061

Amol A. Parikh

Reg. 60671

Patent attorney

McDermott, Will & Emery, LLP

Chicago, IL · 60606

312-372-2000

Common questions

Do patent attorneys in Chicago 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 Chicago tend to track the broader Illinois legal market.

How many USPTO practitioners list a Chicago office?

1,862 USPTO-registered patent practitioners list a Chicago 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 Chicago practitioner remotely?

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