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 Marshall, Gerstein & Borun LLP, Michael Best & Friedrich LLP, and The University of Chicago.

Ashley M. Cowie

Reg. 79868

Patent agent

Michael Best & Friedrich LLP

Chicago, IL · 60606

312-596-5844

Benjamin L. Cox

Reg. 83540

Patent agent

The University of Chicago

Chicago, IL · 60615

608-469-4846

Pamela L Cox

Reg. 51584

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Paul C Craane

Reg. 38851

Patent attorney

Cook Alex Ltd.

Chicago, IL · 60606

312-334-8514

Lawrence Jay Crain

Reg. 31497

Patent attorney

Greer Burns & Crain LTD

Chicago, IL · 60606

312-987-4002

Leah C. Cravitz

Reg. 82494

Patent agent

Chicago, IL · 60614

773-426-3214

Philip J Crihfield

Reg. 25621

Patent attorney

Sidley Austin Brown and Wood

Chicago, IL · 60603

312-853-7650

Alexandra E. Criner

Reg. 80076

Patent attorney

McDonnell Bohnen Hulbert & Berghoff

Chicago, IL · 60606

312-913-2139

Steven G. Criner

Reg. 82954

Patent agent

Honigman LLP

Chicago, IL · 60606

586-747-2753

Harriet P Croke

Reg. 57858

Patent attorney

U. S. EPA Region 5

Chicago, IL · 50504

312-353-4789

Mark William Croll

Reg. 31098

Patent attorney

Law Offices of Mark W. Croll

Chicago, IL · 60618

847-420-1005

Courtney Elizabeth Cronin

Reg. 76847

Patent attorney

Mayer Brown LLP

Chicago, IL · 60606

312-701-8755

John Robert Crossan

Reg. 27433

Patent agent

Chicago, IL · 60610-2465

312-498-2365

Michael T Cruz

Reg. 44636

Patent attorney

McAndrews Held and Malloy, Ltd.

Chicago, IL · 60661

312-775-8000

Kelly L Cummings

Reg. 39646

Patent attorney

Akzo Nobel Inc.

Chicago, IL · 60607

312-544-6925

Joseph P Curcuru

Reg. 78260

Patent agent

International Business Machines (IBM)

Chicago, IL · 60606

312-529-1339

Alvaro Cure Dominguez

Reg. 81532

Patent attorney

Chicago, IL · 60639

786-856-4880

Gianni L Cutri

Reg. 52791

Patent attorney

Kirkland & Ellis LLP

Chicago, IL · 60654

312-862-2000

Daniel M D'Addario

Reg. 73640

Patent attorney

Chicago, IL · 60661

347-256-0732

Kevin T. Dam

Reg. 70982

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606-7407

312-463-5000

Thomas M DaMario· Jr.

Reg. 77142

Patent attorney

Benesch Friedlander Coplan & Aronoff LLP

Chicago, IL · 60606

312-506-3436

George N Dandalides

Reg. 69713

Patent attorney

Fitch, Even, Tabin & Flannery, LLP

Chicago, IL · 60603-3406

312-577-7000

Jacob E Dander

Reg. 80540

Patent agent

University of Chicago

Chicago, IL · 60615

773-834-3210

Brenda L Danek

Reg. 57596

Patent attorney

Latham & Watkins LLP

Chicago, IL · 60611

312-876-7700

Shelley C Danek

Reg. 57712

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Mien Thuy Dang

Reg. 54055

Patent attorney

Baker & McKenzie

Chicago, IL · 60601

312-861-6649

Rodney Allen Daniel

Reg. 31605

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611

312-321-4238

Manav Das

Reg. 70528

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2117

Kyle A. Davis

Reg. 66507

Patent attorney

Dykema Gossett PLLC

Chicago, IL · 60606

312-627-2182

Matthew L. De Preter

Reg. 61799

Patent attorney

Aonberg Goldgehn Davis & Garmisa

Chicago, IL · 60611

312-755-9600

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.