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 Ladas & Parry LLP, Husch Blackwell LLP, and Nixon Peabody LLP.

Audrey Theresa Gallagher

Reg. 77360

Patent agent

Cooley LLP

Chicago, IL · 60606

312-881-6717

Douglas G Gallagher

Reg. 57783

Patent attorney

Ladas & Parry LLP

Chicago, IL · 60604

312-408-1300

Patrick C Gallagher

Reg. 63407

Patent attorney

Duane Morris LLP

Chicago, IL · 60603

312-499-6759

Priscilla F Gallagher

Reg. 32223

Patent attorney

McAndrews Held and Malloy. Ltd.

Chicago, IL · 60661

312-775-8000

Kristin C Galvin

Reg. 80947

Patent attorney

Chicago, IL · 60606

708-704-1988

Ajay K Gambhir

Reg. 44115

Patent attorney

IP Spring, LLC

Chicago, IL · 60602

347-449-1577

Marta Gomez Gamboa

Reg. 78781

Patent agent

Lempia Summerfield Katz, LLC

Chicago, IL · 60603

312-854-8338

Nancy R Gamburd

Reg. 38147

Patent attorney

Gamburd Law Group LLC

Chicago, IL · 60602

312-399-9332

Edward P Gamson

Reg. 29381

Patent attorney

Husch Blackwell LLP

Chicago, IL · 60606

312-655-1500

Michael D Gannon

Reg. 36807

Patent attorney

Baker & Hostetler LLP

Chicago, IL · 60606

312-416-6294

Frank Gao

Reg. 62565

Patent attorney

Ladas & Parry LLP

Chicago, IL · 60604

312-427-1300

Dawn M. Gardner

Reg. 44118

Patent attorney

Rakoczy Molino Mazzochi Siwik

Chicago, IL · 60654

312-222-7505

Janet M Garetto

Reg. 42568

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-425-8514

Jeffrey R Gargano

Reg. 38148

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606-5096

312-984-7733

Colleen M Garlington

Reg. 72801

Patent attorney

Kirkland & Ellis, LLP

Chicago, IL · 60654

312-862-7019

Scott A Garnick

Reg. 68852

Patent attorney

HERE North America LLC

Chicago, IL · 60606

847-894-5935

John R Garrett

Reg. 27888

Patent attorney

Carmen Patti Law Group, LLC

Chicago, IL · 60602

847-508-2371

Arthur A Gasey

Reg. 35150

Patent attorney

Niro, Haller and Niro

Chicago, IL · 60602

312-377-3245

Peter A Gashkoff

Reg. 38152

Patent attorney

University of Illinois

Chicago, IL · 60612

312-996-7333

Christopher J. Gass

Reg. 69265

Patent attorney

Leydig, Voit & Mayer, Ltd

Chicago, IL · 60601

312-616-5634

David A Gass

Reg. 38153

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Amy J Gast

Reg. 41773

Patent attorney

K&L Gates LLP

Chicago, IL · 60602-4207

312-807-4230

Patrick G Gattari

Reg. 39682

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

John C Gatz

Reg. 41774

Patent attorney

Nixon Peabody LLP

Chicago, IL · 60602

312-425-8515

Justin R Gaudio

Reg. 60178

Patent attorney

Greer, Burns & Crain, LTD

Chicago, IL · 60606

312-360-0080

Apurv Gaurav

Reg. 73985

Patent attorney

K&L Gates LLP

Chicago, IL · 60602

312-807-4282

Brian T Gause

Reg. 67660

Patent agent

Chicago, IL · 60657

312-725-4303

Mario A. Gaviria

Reg. 82680

Patent agent

Leydig, Voit & Mayer, Ltd.

Chicago, IL · 60601

312-616-5731

Michal A Gawlik

Reg. 74413

Patent attorney

Husch Blackwell LLP

Chicago, IL · 60606

312-985-8279

Tiffany D Gehrke

Reg. 66234

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

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.