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 Banner & Witcoff, Ltd., McDermott Will & Emery LLP, and Nixon Peabody LLP.

Matthew J Gryzlo

Reg. 43648

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606-5096

312-984-6874

Kevin R Gualano

Reg. 64888

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-425-8526

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

Jennifer M Hall

Reg. 38169

Patent attorney

Mars, Inc.

Chicago, IL · 60642

312-794-6539

Timothy J. Haller

Reg. 26692

Patent attorney

HALLER LAW PLLC

Chicago, IL · 60611

630-336-4283

William J Hallihan

Reg. 39210

Patent attorney

Hallihan IP Partners, LLC

Chicago, IL · 60661

312-784-3000

Lesley M Hamming

Reg. 66986

Patent attorney

Latham & Watkins LLP

Chicago, IL · 60611

312-876-7700

Eric J Hamp

Reg. 68971

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-5472

Nathaniel A. Hamstra

Reg. 65680

Patent attorney

Quinn Emanuel Urquhart & Sullivan, LLP

Chicago, IL · 60606

312-705-7400

Mark G Hanley

Reg. 44736

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

Megan K. Hanley

Reg. 79916

Patent agent

McDonnell, Boehnen, Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2350

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.