Illinois

Patent attorneys in Illinois

Illinois hosts 2,917 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in Illinois. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Banner & Witcoff, Ltd, Caterpillar Inc., and Wood Phillips.

Top cities in Illinois

All practitioners in Illinois

Carling D. Miller

Reg. 84415

Patent attorney

Riverwoods, IL · 60015

847-997-2388

Charles L Miller

Reg. 43805

Patent attorney

Banner & Witcoff, Ltd

Chicago, IL · 60606

312-715-1000

Christian B Miller

Reg. 71620

Patent attorney

Wood Phillips

Chicago, IL · 60661

312-876-2108

Jason A. Miller

Reg. 62535

Patent agent

BP America, Inc.

Naperville, IL · 60563

713-909-8043

Jillian Elizabeth Miller

Reg. 902820

Limited recognition

DePaul University College of Law

Chicago, IL · 60604

Laura Beth Miller

Reg. 37680

Patent attorney

Brinks Gilson & Lione

Chicago, IL · 60611

312-321-4715

Robert Allen Miller

Reg. 26956

Patent attorney

RAMiller Law

Northbrook, IL, IL · 60062

262-880-5991

Scott M Miller

Reg. 62967

Patent attorney

Lee Sullivan Shea & Smith LLP

Chicago, IL · 60661

312-754-9646

Stephen M Miller

Reg. 40728

Patent attorney

J. Sterling Morton West High School

Berwyn, IL · 60402

Thomas V Miller

Reg. 42002

Patent attorney

Motorola Mobility, Inc.

Chicago, IL · 60654

224-766-0500

Thomas A Miller

Reg. 40091

Patent attorney

Miller, Matthias & Hull

Chicago, IL · 60606

312-977-9902

William B Miller

Reg. 32922

Patent attorney

Oakley, IL · 62501

217-358-4058

Andrew W. Mills

Reg. 82762

Patent agent

Chicago, IL · 60607

309-339-3797

Kelsey L Milman

Reg. 42895

Patent attorney

Caterpillar Inc.

Peoria, IL · 61629

815-349-8578

Milan Milosevic

Reg. 42005

Patent attorney

SRAM Corporation

Chicago, IL · 60642

312-664-3506

Michael Edward Milz

Reg. 34880

Patent attorney

Crowell & Moring

Chicago, IL · 60611

312-321-4200

Aaron H Min

Reg. 75467

Patent agent

Ruby Cleaners Outlet

Wheaton, IL · 60189

630-788-3900

Luiz A Miranda

Reg. 74762

Patent attorney

Mayer Brown LLP

Chicago, IL · 60606

312-701-8873

Rita Mirman

Reg. 40093

Patent attorney

Tribune Company

Chicago, IL · 60611

312-222-3290

Sadaf Misbah

Reg. 79583

Patent agent

Des Plaines, IL · 60018

224-409-8291

Eric D Misfeldt

Reg. 59527

Patent attorney

Caterpillar Inc.

Peoria, IL · 61629

309-675-0196

Calista J Mitchell

Reg. 63944

Patent attorney

Fitch, Even, Tabin & Flannery, LLP

Chicago, IL · 60603-3406

312-577-7000

Shaoni L Mitchell

Reg. 59321

Patent attorney

Banner & Witcoff, LTD

Chicago, IL · 60606-7407

312-463-5000

Sudip Mitra

Reg. 75900

Patent attorney

VedderPrice

Chicago, IL · 60601

312-882-2256

Janice V Mitrius

Reg. 43808

Patent attorney

Banner & Witcoff, Ltd

Chicago, IL · 60606

312-463-5481

Lucas J Mlsna

Reg. 70781

Patent attorney

Lucas J. Mlsna, Attorney at Law

Evanston, IL · 60202

815-520-1583

Andrew B. Mlyniec

Reg. 82502

Patent agent

State Farm

Bloomington, IL · 61701

309-766-0071

Janine A Moderson

Reg. 50981

Patent attorney

Amin Talati, LLC

Chicago, IL · 60603

312-466-1033

Gaurav K Mohindra

Reg. 61321

Patent attorney

Mohindra Law Group P.C.

Westmont, IL · 60559

630-243-4207

Jeffrey Robert Moisan

Reg. 75061

Patent attorney

HERE Technologies

Chicago, IL · 60606

312-894-7000

Common questions

Do I need a patent attorney based in Illinois?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a Illinois-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in Illinois?

2,917 active USPTO-registered patent practitioners list a Illinois office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.