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 Northwestern Pritzker School of Law, Cook Alex Ltd., and Marshall, Gerstein & Borun LLP.

Zi Yie

Reg. 80066

Patent attorney

Faegre Drinker Biddle & Reath LLP

Chicago, IL · 60606

312-356-5019

Hongya Yin

Reg. 902888

Limited recognition

Northwestern Pritzker School of Law

Chicago, IL · 60611

312-918-8170

Il Hwan Yoo

Reg. 78275

Patent attorney

Crowell & Moring LLP

Chicago, IL · 60611

312-840-3297

Kayla York

Reg. 903112

Limited recognition

Northwestern Pritzker School of Law

Chicago, IL · 60611

708-969-0169

Steven Yovits

Reg. 48055

Patent attorney

Kelley Drye & Warren LLP

Chicago, IL · 60606

312-857-7099

Peter Hyunmin Yu

Reg. 76398

Patent agent

HERE North America, LLC

Chicago, IL · 60606

312-208-4155

Qi Yu

Reg. L1384

Limited recognition

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-616-5712

Shui Wan Yu

Reg. 81939

Patent agent

Cook Alex Ltd.

Chicago, IL · 60606

312-368-500

Arthur Tan Chi Yuan

Reg. 62449

Patent attorney

Loeb & Loeb LLP

Chicago, IL · 60654

312-464-3152

Shelby C. Yuan

Reg. 84493

Patent attorney

Latham & Watkins LLP

Chicago, IL · 60611

312-777-7280

Maya Yusim

Reg. 73563

Patent agent

Faegre Drinker Biddle & Reath

Chicago, IL · 60606

312-569-1506

Christopher B. Zahn

Reg. 83235

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-423-3459

Dominic P Zanfardino

Reg. 36068

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611-5599

312-321-4287

James Paul Zeller

Reg. 28491

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Steven McMahon Zeller

Reg. 48060

Patent attorney

Dykema Gossett PLLC

Chicago, IL · 60606

312-627-2272

Blaine J Zern

Reg. 75047

Patent agent

Michael Best & Friedrich LLP

Chicago, IL · 60606

312-596-5833

Allen G Zeyher

Reg. 50550

Patent agent

Chicago, IL · 60657

773-871-8012

Weian Zhan

Reg. 66752

Patent attorney

Chicago, IL · 60605

847-298-2996

Daniel G Zhang

Reg. 78856

Patent agent

Irwin IP LLC

Chicago, IL · 60607

312-667-6199

Shu Zhang

Reg. 75882

Patent attorney

Riley Safer Holmes & Cancila LLP

Chicago, IL · 60603

312-471-8740

Shuang Zhang

Reg. 75778

Patent agent

Faegre Baker Daniels LLP

Chicago, IL · 60606

312-212-6557

Lloyd L Zickert

Reg. 17807

Patent attorney

Cook Alex Ltd.

Chicago, IL · 60606

312-236-8500

Amy C. Ziegler

Reg. 56099

Patent attorney

Greer, Burns & Crain, Ltd

Chicago, IL · 60606

312-360-0080

Greta T. Zimmerman

Reg. 83363

Patent agent

Banner Witcoff

Chicago, IL · 60606

312-463-5000

Mark C Zimmerman

Reg. 44006

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

131-258-01094

Michael W. Zimmerman

Reg. 57993

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

Amy L. Ziolkowski

Reg. 63046

Patent attorney

Ryndak & Suri, LLP

Chicago, IL · 60606

312-419-7005

Elizabeth C. Zubiate

Reg. 75803

Patent agent

Fulcrum GT

Chicago, IL · 60601

915-861-6419

Donald L Zuhn

Reg. 48710

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

Anthony S Zummer

Reg. 17865

Patent attorney

Palmatier & Zummer

Chicago, IL · 60603

312-456-0800

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.