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, Kirkland & Ellis LLP, and Leydig, Voit & Mayer Ltd.

Daniel P. Gross

Reg. 74535

Patent attorney

Kirkland & Ellis LLP

Chicago, IL · 60654

312-862-2613

John Karl Gross

Reg. 57108

Patent attorney

Leydig, Voit & Mayer Ltd

Chicago, IL · 60601

312-616-5600

Jonathan E. Grossman

Reg. 63525

Patent attorney

Williams Montgomery & John

Chicago, IL · 60606

312-443-3858

Catherine T Grote

Reg. 83405

Patent attorney

Benesch Friedlander Coplan & Aronoff LLP

Chicago, IL · 60606

872-302-6460

Gregory D Grove

Reg. 43647

Patent attorney

Neal, Gerber & Eisenberg LLP

Chicago, IL · 60602

312-269-8084

Lewis S Gruber

Reg. 30060

Patent attorney

Chicago, IL · 60601

312-938-8740

Matthew J Gryzlo

Reg. 43648

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606-5096

312-984-6874

Zheyuan Gu

Reg. 902874

Limited recognition

Northwestern Pritzker School of Law

Chicago, IL · 60611

646-886-8191

Kevin R Gualano

Reg. 64888

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-425-8526

Li Guan

Reg. 902875

Limited recognition

Northwestern Pritzker School of Law

Chicago, IL · 60611

607-262-1943

James C Gumina

Reg. 32898

Patent attorney

McDonnell Boehnen Hulbert & Berghoff

Chicago, IL · 60606

312-913-0001

Julie R Gunnigle

Reg. 64023

Patent attorney

Cook County State's Attorney's Office

Chicago, IL · 60608

773-681-2697

Sophia Gunzburg

Reg. 82297

Patent agent

Chicago, IL · 60657

203-536-8002

Gaurav Gupta

Reg. 73494

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2124

Kaushal Gupta

Reg. 51761

Patent attorney

US Environmental Protection Agcy

Chicago, IL · 60604

312-886-6803

Richard J Gurak

Reg. 41050

Patent attorney

Advitam IP, LLC

Chicago, IL · 60606

312-332-7700

Szymon M Gurda

Reg. 58451

Patent attorney

Cherskov & Flaynik

Chicago, IL · 60602

312-621-1330

Daniel M Gurfinkel

Reg. 34177

Patent attorney

Dennemeyer & Associates, LLC

Chicago, IL · 60606

312-380-6500

Kathryn M. Gutman

Reg. 901404

Limited recognition

University of Illinois Chicago School of Law

Chicago, IL · 60604

260-466-9020

Kevin W Guynn

Reg. 29927

Patent attorney

Greer, Burns & Crain, LTD

Chicago, IL · 60606-6771

312-360-0080

Rachel A Guzowski

Reg. 61705

Patent attorney

K&L Gates LLP

Chicago, IL · 60602-4207

312-807-4441

Brian E Haan

Reg. 62567

Patent attorney

Lee Sheikh & Haan LLC

Chicago, IL · 60603

312-982-0070

Allison Marie Haas

Reg. 77919

Patent attorney

Reed Smith LLC

Chicago, IL · 60606

312-207-2405

Dennis P Hackett

Reg. 52482

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-5000

Mark A Hagedorn

Reg. 44731

Patent attorney

Barnes & Thornburg LLP

Chicago, IL · 60606

312-357-1313

Sarine Rebecca Hagopian

Reg. 77178

Patent attorney

Chicago, IL · 60661

847-940-8509

Saira B Haider

Reg. 70167

Patent attorney

Chicago, IL · 60604

646-406-4889

Patrick W Hajduch

Reg. 62907

Patent attorney

Chicago, IL · 60622

630-606-2217

Christopher S. Hall

Reg. 59341

Patent attorney

Christopher Hall & Associates, L.L.C.

Chicago, IL · 60614

312-545-4355

Jason D. Hall

Reg. 70196

Patent attorney

SunVest Solar, LLC

Chicago, IL · 60661

262-547-1200

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.