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 Leydig Voit and Mayer LTD, Mayer Brown LLP, and Foley & Lardner LLP.

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

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

Michael D Clifford

Reg. 60550

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

Brian S Clise

Reg. 47497

Patent attorney

Chicago, IL · 60610

312-848-9651

David W Clough

Reg. 36107

Patent attorney

Much Shelist PCc

Chicago, IL · 60606

312-521-2762

Matthew G. Clouthier

Reg. 84630

Patent agent

Foley and Lardner LLP

Chicago, IL · 60654

312-832-4937

Eric D Cohen

Reg. 38110

Patent attorney

Klintworth & Rozenblat IP LLP

Chicago, IL · 60607

773-570-3330

Daniel William Collins

Reg. 31912

Patent attorney

Wood, Phillips, Katz, Clark & Mortimer

Chicago, IL · 60661

312-876-2126

James A Collins

Reg. 43557

Patent attorney

Chicago, IL · 60603

312-291-0860

Theresa Conduah

Reg. 60227

Patent attorney

United Air Lines Inc.

Chicago, IL · 60601

312-997-7578

John Boyd Conklin

Reg. 30369

Patent attorney

Leydig Voit and Mayer LTD

Chicago, IL · 60601-6731

312-616-5685

James Joseph Conlon

Reg. 25965

Patent attorney

Conlon and Associatess

Chicago, IL · 60660

321-726-0545

John E Conour

Reg. 59054

Patent attorney

McDonnell Boehnen Hulbert and Berghoff LLP

Chicago, IL · 60606-6709

312-913-3317

James Bombard Conte

Reg. 54661

Patent attorney

Welsh & Katz, LTD.

Chicago, IL · 60606-3912

312-655-1500

Joseph M Conti

Reg. 67770

Patent attorney

Chicago, IL · 60647

847-721-8590

Alisha A. Contractor

Reg. 82152

Patent agent

Benesch, Friedlander, Coplan & Aronoff LLP

Chicago, IL · 60606

312-273-1637

Adam B. Conway

Reg. 65840

Patent attorney

AbbVie Inc.

Chicago, IL · 60064

847-937-6618

Erin R Conway

Reg. 67081

Patent attorney

McDonald Hopkins LLC

Chicago, IL · 60654

312-642-6733

Gordon Russell Coons

Reg. 20821

Patent attorney

Leydig Voit and Mayer LTD

Chicago, IL · 60601

312-616-5600

Marc S Cooperman

Reg. 34143

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-5000

Trevor K Copeland

Reg. 50292

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611

312-222-8104

Palmer C. Corbett

Reg. 78675

Patent attorney

Kirkland & Ellis LLP

Chicago, IL · 60654

312-862-2483

Allison M Corder

Reg. 50545

Patent attorney

Valauskas Corder LLC

Chicago, IL · 60606

312-673-0360

John W Cornell

Reg. 30619

Patent attorney

K&L Gates LLP

Chicago, IL · 60602

312-807-4209

Carrie W Cotter

Reg. 47502

Patent attorney

Strellis & Field, Chartered

Chicago, IL · 60654

312-201-0000

John H Coult

Reg. 22338

Patent attorney

Chicago, IL · 60657

773-549-6544

Steven B Courtright

Reg. 40966

Patent agent

thyssenkrupp North America, Inc.

Chicago, IL · 60604

312-525-2731

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.