Chicago, Illinois

Patent attorneys in Chicago

Chicago, Illinois is home to 1,891 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 Banner & Witcoff, Ltd., Quarles & Brady LLP, and Honigman Miller Schwartz and Cohn LLP.

Justin D. DeAngelis

Reg. 69958

Patent attorney

Quarles & Brady LLP

Chicago, IL · 60654

312-715-5168

David L DeBruin

Reg. 35489

Patent attorney

Honigman Miller Schwartz and Cohn LLP

Chicago, IL · 60606-1734

312-701-9300

Eric A. DeChant

Reg. 79492

Patent agent

DeChant, Inc.

Chicago, IL · 60656

773-317-0156

Jordan A. DeGayner

Reg. 77848

Patent agent

Cooley LLP

Chicago, IL · 60606

312-881-6392

James V DeGiulio

Reg. 66719

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2109

Timothy Quinn Delaney

Reg. 33674

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611

312-321-4200

Mark T. Deming

Reg. 69263

Patent attorney

Polisinelli PC

Chicago, IL · 60601

312-873-3625

Anthony J. Denis

Reg. 77711

Patent attorney

Bannner & Witcoff, LTD

Chicago, IL · 60606

502-298-6542

Richard R Dennerline

Reg. 54611

Patent attorney

Richard R. Dennerline, Patent Attorney

Chicago, IL · 60603

312-873-3756

Taylor S Dennington

Reg. 66956

Patent attorney

Dentons US LLP

Chicago, IL · 60606

Mitchell L. Denti

Reg. 80095

Patent attorney

Jenner & Block LLP

Chicago, IL · 60654

312-840-7322

Nicholas M Dernik

Reg. 67320

Patent agent

Chicago, IL · 60614

312-806-3320

Priya A. Desai

Reg. 75647

Patent attorney

Mayer Brown, LLP

Chicago, IL · 60606

312-701-7496

Kimberly S Devine

Reg. 75742

Patent attorney

Banner & Witcoff, LTD

Chicago, IL · 60606

312-463-5409

Donald R Devitt

Reg. 82201

Patent attorney

Chicago, IL · 60625

312-.95-3.1916

Joshua C. Devorkin

Reg. 82864

Patent agent

Fitch Even Tabin & Flannery LLP

Chicago, IL · 60603

312-577-7000

John C. Dewar

Reg. 84133

Patent agent

McAndrews, Held & Malloy

Chicago, IL · 60661

312-775-8000

Muskan K. Dhatt

Reg. 902819

Limited recognition

DePaul University College of Law

Chicago, IL · 60604

Mary E Dicig

Reg. 40589

Patent attorney

Schwartz, Cooper, Greenburger & Krauss

Chicago, IL · 60601

312-516-4456

Richard Eugene Dick

Reg. 27778

Patent attorney

McAndrews, Held & Malloy LTD.

Chicago, IL · 60661

312-775-8000

Matthew S. Dicke

Reg. 58819

Patent attorney

K&L Gates LLP

Chicago, IL · 60602-4207

312-578-5415

Chad A Diehl

Reg. 64763

Patent attorney

Mayer Brown LLP

Chicago, IL · 60606

312-701-8022

Azuka C. Dike

Reg. 68497

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-3000

Grant A Dingledine

Reg. 73469

Patent agent

Scientific Games

Chicago, IL · 60654

309-370-4894

Xavier P Diokno

Reg. 62794

Patent attorney

Huron Consulting Group

Chicago, IL · 60607

312-880-3064

Louis DiSanto

Reg. 51331

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606-7407

312-463-5000

Rebecca S Dise

Reg. 65111

Patent agent

Leydig, Voit & Mayer, Ltd.

Chicago, IL · 60601

312-616-5600

Jasper William Dockrey

Reg. 33868

Patent attorney

Chicago, IL · 60657

847-863-5625

Alvin B Dodek

Reg. 34577

Patent attorney

WH Trading, LLC

Chicago, IL · 60026

312-372-4557

Kristen A Dola

Reg. 70625

Patent attorney

RinLaures LLC

Chicago, IL · 60654

773-387-3200

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?

1,891 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.