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, Arch & Lake LLP, and K&L Gates LLP.

Zhangyuan Ji

Reg. 800046

Limited recognition

Arch & Lake LLP

Chicago, IL · 60601

773-680-9572

Jian Jiang

Reg. 69127

Patent attorney

K&L Gates LLP

Chicago, IL · 60602

312-807-4406

Yanling Jiang

Reg. 76136

Patent attorney

jiangipllc

chicago, IL · 60604

630-733-9483

Yiwei Jiang

Reg. 78350

Patent attorney

Chicago, IL · 60611

630-730-6572

Panasarn Aim Jirut

Reg. 51849

Patent attorney

The Law Offices of Eugene M. Cummings, P.C.

Chicago, IL · 60606

312-984-0144

Frank L. Johnson

Reg. 69969

Patent attorney

Leydig, Voit & Mayer, Ltd.

Chicago, IL · 60601

312-616-5600

Harold V Johnson

Reg. 31972

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611

312-321-4200

Katherine H Johnson

Reg. 72199

Patent attorney

Steptoe & Johnson LLP

Chicago, IL · 60606

312-577-1300

Robert C. Johnson

Reg. 79836

Patent agent

Marshall Gerstein & Borun LLP

Chicago, IL · 60606

312-423-3464

Nicholas A. Johnston

Reg. 82251

Patent attorney

Kirkland & Ellis, LLP

Chicago, IL · 60654

312-862-4214

Richard B Johnston

Reg. 41097

Patent attorney

Cook Alex Ltd

Chicago, IL · 60606

312-334-8547

Trevor B Joike

Reg. 25542

Patent attorney

Schiff Hardin LLP

Chicago, IL · 60606

312-258-5774

Kimberlee M Jones

Reg. 60173

Patent agent

Jones Legal Advisors PLLC

Chicago, IL · 60601

312-600-3201

Shyla N. Jones

Reg. 71648

Patent attorney

Charles Schwab and Co.

Chicago, IL · 60606

630-334-0138

Matthew M Jorge

Reg. 66014

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606-6357

312-474-6300

Mark Joy

Reg. 35562

Patent attorney

Leydig Voit and Mayer, Ltd.

Chicago, IL · 60601

312-616-5600

Paul Gerard Juettner

Reg. 30270

Patent attorney

Greer Burns and Crain, Ltd.

Chicago, IL · 60606

312-360-0080

Thomas J Juettner

Reg. 69812

Patent agent

Greer Burns and Crain Ltd.

Chicago, IL · 60606

312-360-0080

Charles E. Juister

Reg. 65573

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-423-3452

Sean J. Jungels

Reg. 66582

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-5000

Ashley K. Justice

Reg. 82252

Patent attorney

McDermott Will & Emery

Chicago, IL · 60606

312-984-2759

Katherine E Kafkis

Reg. 84390

Patent agent

Foley & Lardner LLP

Chicago, IL · 60654

312-832-4395

Christin Noel Kaman

Reg. 51857

Patent agent

Brinks Hofer Gilson & Lione

Chicago, IL · 60611

312-245-5319

Ronald M Kaminecki

Reg. 42708

Patent attorney

Dialog LLC

Chicago, IL · 60647

773-276-3725

Chad A Kamler

Reg. 71381

Patent attorney

McDonnell Boehnen Hulbert & Berghoff

Chicago, IL · 60606

312-913-0001

Kevin J Kane

Reg. 53089

Patent attorney

CCC Information Service Inc.

Chicago, IL · 60654

312-229-2147

Ji Soo Kang

Reg. 902017

Limited recognition

Northwestern Pritzker School of Law

Chicago, IL · 60611

312-358-6754

Kyle M. Kantarek

Reg. 74441

Patent attorney

K&L GATES LLP

Chicago, IL · 60602

312-807-4206

Marc L Kaplan

Reg. 69748

Patent attorney

Quinn Emanuel Urquhart & Sullivan, LLP

Chicago, IL · 60606

312-705-7400

Dennis G. Kapolnek

Reg. 68541

Patent attorney

Lee Sullivan Shea & Smith LLP

Chicago, IL · 60661

563-343-3058

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.