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 Nixon Peabody LLP, Leydig, Voit & Mayer, Ltd., and Google Inc..

Pei Chen

Reg. 73692

Patent attorney

Leydig, Voit & Mayer, Ltd.

Chicago, IL · 60601

312-616-5600

Sylvia Y Chen

Reg. 39633

Patent attorney

Google Inc.

Chicago, IL · 60607

630-708-7257

Jun Cheng

Reg. 75406

Patent attorney

Crowell & Moring LLP

Chicago, IL · 60654

312-840-3298

Daniel Ronald Cherry

Reg. 29054

Patent attorney

Hahn Loeser & Parks, LLP

Chicago, IL · 60606

312-637-3030

Michael J Cherskov

Reg. 33664

Patent attorney

Cherskov Flaynik & Guroa

Chicago, IL · 60602

312-621-1330

Theodore J. Chiacchio

Reg. 58649

Patent attorney

Chicago, IL · 60610

917-714-8085

Davis Michael Chin· Jr.

Reg. 61668

Patent attorney

Benesch, friedlander, Coplan & Aronoff LLP

Chicago, IL · 60606

312-212-4949

Michelle A. Chin

Reg. 80360

Patent attorney

Latham & Watkins LLP

Chicago, IL · 60611

312-777-7246

Michael A Chinlund

Reg. 55064

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Pramod Chintalapoodi

Reg. 68659

Patent attorney

CHIP LAW GROUP

CHICAGO, IL · 60611

312-803-4821

Timothy M Cho

Reg. 61567

Patent attorney

Chicago, IL · 60608

310-259-3795

Hang Rak Choi

Reg. 65357

Patent attorney

Drinker Biddle & Reath LLP

Chicago, IL · 60606

312-569-1463

Jon P Christensen

Reg. 34137

Patent attorney

Welsh Husch Blackwellm LLC

Chicago, IL · 60606

312-526-1500

Leah S Christoforidis

Reg. 64474

Patent attorney

Red Chalk Group

CHICAGO, IL · 60606

847-390-0703

Angelo J. Christopher

Reg. 81594

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-977-4391

Daniel Nick Christus

Reg. 29626

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606-5096

312-984-7689

Chia-Hsin Chu

Reg. 63022

Patent attorney

Chicago, IL · 60611

608-698-1616

Michael P Chu

Reg. 37112

Patent attorney

McDermot Will & Emery

Chicago, IL · 60606

312-984-5485

Peter W Chuang

Reg. 67381

Patent agent

Chicago, IL · 60661

562-726-2206

Gregory R. Churney

Reg. 78923

Patent agent

Quarles & Brady LLP

Chicago, IL · 60606

312-715-2724

Katherine I. Chwistek

Reg. 83076

Patent agent

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

David L Ciesielski

Reg. 57432

Patent attorney

McDonnell Boehnen Hulbert

Chicago, IL · 60606

312-913-0001

Magdalena O Cilella

Reg. 56619

Patent agent

Brinks Gilson & Lione

Chicago, IL · 60611

312-321-4200

Sorinel Cimpoes

Reg. 48311

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-425-8542

Nicholas H. Ciulla

Reg. 78409

Patent attorney

Mayer Brown LLP

Chicago, IL · 60606

317-354-3108

Abigail J. Clark

Reg. 84404

Patent agent

Foley & Lardner LLP

Chicago, IL · 60654

312-832-4701

Cody Ryan Clark

Reg. 84665

Patent agent

Chicago-Kent College of Law

Chicago, IL · 60661

815-312-6313

Dorien J Clark

Reg. 80527

Patent attorney

McAndrews Held & Malloy Ltd

Chicago, IL · 60661

859-644-9235

Jeffrey Lynn Clark

Reg. 29141

Patent attorney

Wood, Phillips

Chicago, IL · 60661

312-876-1800

Scott P. Clark

Reg. 83283

Patent attorney

Chicago, IL · 60661

408-318-9705

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.