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 McDonnell Boehnen Hulbert & Berghoff LLP, Banner Witcoff, and McDonnell Boehnen Hulbert & Bergoff LLP.

Caroline S. Lourgos

Reg. 75202

Patent agent

Chicago, IL · 60661

309-840-0374

James L Lovsin

Reg. 69550

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

Peter E. Loy

Reg. 79189

Patent agent

Banner Witcoff

Chicago, IL · 60606

312-463-5469

Alexander Lu

Reg. 82034

Patent agent

McDonnell Boehnen Hulbert & Bergoff LLP

Chicago, IL · 60606

312-913-2142

Jerry Y Lu

Reg. 79950

Patent agent

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2011

Ronald V. Lucarelli

Reg. 82720

Patent agent

Buchanan Ingersoll & Rooney PC

Chicago, IL · 60606

312-261-8764

John Kenneth Lucas

Reg. 27024

Patent attorney

Brinks Hofer Gilson & Lione

Chicago, IL · 60610

312-321-4220

Kenneth S. Luchesi

Reg. 58673

Patent attorney

Jones Day

Chicago, IL · 60601-1692

312-782-3939

Jonathan J Luciano

Reg. 73498

Patent attorney

Chicago, IL · 60614

305-215-1382

Cori L Ludwig

Reg. 56973

Patent agent

Trading Technologies International, Inc.

Chicago, IL · 60606

312-476-1069

Lisa M Luedke

Reg. 51151

Patent attorney

Baker and McKenzie

Chicago, IL · 60601

312-861-8616

Sara A Lufrano

Reg. 53245

Patent attorney

Lord, Bissell & Brook, LLP

Chicago, IL · 60606-4410

808-542-7851

James J Lukas· Jr.

Reg. 59114

Patent attorney

Greenberg Traurig, LLP

Chicago, IL · 60601

312-456-8400

Paul J Lukitsch

Reg. 51976

Patent attorney

Seyfarth Shaw Attorneys

Chicago, IL · 60603

312-269-8945

Brian J Lum

Reg. 54282

Patent attorney

Ice Miller

Chicago, IL · 60606

312-726-8129

Jared R. Lund

Reg. 78413

Patent agent

Chicago, IL · 60605

815-985-9362

Kenneth J Luptak

Reg. 65043

Patent attorney

Chicago, IL · 60657

773-220-0663

Joshua J Lustig

Reg. 77904

Patent agent

McDonnell, Boehnen, Hulbert & Berghoff, LLP

Chicago, IL · 60606-6709

224-436-7998

John P Luther

Reg. 32261

Patent attorney

Ladas & Parry, LLP

Chicago, IL · 60604

312-427-1300 EX. 265

Alketa Lutolli

Reg. 84376

Patent agent

Honigman LLP

Chicago, IL · 60654

312-701-9300

Melanie N Lymon

Reg. 59954

Patent agent

Law Offices of Alan Barinholtz

Chicago, IL · 60606

312-704-4000

Brian Patrick Lynch

Reg. 58794

Patent agent

McAndrews Held & Malloy, Ltd.

Chicago, IL · 60661

312-775-8000

George T. Lyons· III

Reg. 76884

Patent attorney

McDonnell Boehnen Hulbert & Berghoff

Chicago, IL · 60606

312-913-3372

Katherine M Lyons

Reg. 78333

Patent attorney

Michael Best & Friedrich LLP

Chicago, IL · 60606

312-596-5854

Kathleen Ann Lyons

Reg. 31852

Patent attorney

Dennemeyer & Associates, LLC

Chicago, IL · 60606

312-978-1815

Avani C Macaluso

Reg. 61496

Patent attorney

McDermott Will & Emery LLP

Chicago, IL · 60606

312-372-2000

Brittany C MacDonald

Reg. 44159

Patent attorney

Greer Burns & Crain, Ltd.

Chicago, IL · 60606

312-360-0080

Edward Machado

Reg. 58372

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606-6709

312-913-2109

Richard A Machonkin

Reg. 41962

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-0001

Thyannda M Mack

Reg. 73652

Patent attorney

Dykema Gossett, PLLC

Chicago, IL · 60606

312-627-2126

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.