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 Greenberg Traurig, LLP, Hahn Losser & Parks LLP, and Leydig, Voit & Mayer, LTD.

Herve R Jacquiau

Reg. 64976

Patent attorney

Hahn Losser & Parks LLP

Chicago, IL · 60606

312-637-3022

Robert Vernon Jambor

Reg. 23080

Patent attorney

Leydig, Voit & Mayer, LTD

Chicago, IL · 60601

312-616-5600

Joshua H. James

Reg. 72568

Patent attorney

Crowell & Moring

Chicago, IL · 60654

312-840-3270

Lawrence E James· Jr.

Reg. 63695

Patent attorney

Reed Smith, LLP

Chicago, IL · 60606

312-207-2819

Thomas A James

Reg. 74109

Patent attorney

Orrick Herrington & Sutcliffe LLP

Chicago, IL · 60654

312-924-9805

Qasim S. Jami

Reg. 62899

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606

312-372-2000

Joseph F Janas

Reg. 69864

Patent attorney

Foley & Lardner LLP

Chicago, IL · 60654

312-832-5171

Kwangho Jang

Reg. 76690

Patent agent

Fish & Richardson P.C.

Chicago, IL · 60606

312-278-2611

Seung Hyun Jang

Reg. 75303

Patent agent

Lempia Summerfield Katz LLC

Chicago, IL · 60604

312-854-8370

John Charles Janka

Reg. 32996

Patent attorney

Nicro Scavone Haller & Niro

Chicago, IL · 60602

312-236-0733

Marlee A Jansen

Reg. 64677

Patent attorney

Hansen Reynolds Dickinson Crueger LLC

Chicago, IL · 60601

312-265-2252

John J. Jansky

Reg. 78193

Patent agent

Quarles and Brady LLP

Chicago, IL · 60606

312-715-5287

Lynn L Janulis

Reg. 53066

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Judy C Jarecki-Black

Reg. 44170

Patent attorney

Klintworth & Rozenblat LLP

Chicago, IL · 60607

678-427-2048

Gary Robert Jarosik

Reg. 35906

Patent attorney

Greenberg Traurig, LLP

Chicago, IL · 60601

312-456-8400

Keith R Jarosik

Reg. 47683

Patent attorney

Greenberg Traurig, LLP

Chicago, IL · 60607

312-456-8400

Larry Michael Jarvis

Reg. 27341

Patent attorney

McAndrews Held and Malloy

Chicago, IL · 60661

312-775-8000

Joseph T Jasper

Reg. 50833

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

Alexandria M. Jaworski

Reg. 84751

Patent agent

Conviser Law Center

Chicago, IL · 60661

815-474-5515

Daniel M. Jebsen

Reg. 71711

Patent attorney

Dinsmore & Shohl

Chicago, IL · 60558

312-837-4375

Steven E Jedlinski

Reg. 66922

Patent attorney

Sisvel US, Inc

Chicago, IL · 60606

312-583-3638

Aseem Jha

Reg. 77946

Patent agent

Kirkland & Ellis LLP

Chicago, IL · 60654

131-286-23528

Shaum B. Jhansale

Reg. 64607

Patent attorney

Chicago, IL · 60640

773-620-4100

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

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.