Illinois

Patent attorneys in Illinois

Illinois hosts 2,889 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 Nokia Solutions and Networks, Senior Attorney, Intellectual Property, and Hojka Qadeer, LLC.

Top cities in Illinois

All practitioners in Illinois

Cary M Pumphrey

Reg. 56719

Patent attorney

Senior Attorney, Intellectual Property

Deerfield, IL · 60015

847-315-4582

Rebecca L Pumphrey

Reg. 53713

Patent attorney

Nokia Solutions and Networks

Arlington Heights, IL · 60004

847-532-8067

Umair A Qadeer

Reg. 54380

Patent agent

Hojka Qadeer, LLC

Chicageo, IL · 60601

312-248-3020

Yi Qiao

Reg. 69160

Patent agent

Nokia Solutions and Networks

Arlington Heights, IL · 60004

847-532-8020

Henry C Query· Jr

Reg. 35650

Patent attorney

Henry Query, P.C.

Wheaton, IL · 60187

630-260-8093

Kelly B Quinn

Reg. 67150

Patent agent

Chicago, IL · 60605

989-493-0191

Sean P Quinn

Reg. 73974

Patent attorney

SPQ IP LLC

Wheaton, IL · 60187

312-620-6289

Lauren T Rabinovic

Reg. 45605

Patent attorney

GLS Capital

Chicago, IL · 60606-1598

224-668-4632

Brian A. R. Raddatz

Reg. 81010

Patent attorney

Caterpillar Inc.

Peoria, IL · 61629-7310

555-555-1234

Bradley F Rademaker

Reg. 35331

Patent attorney

Neal, Gerber & Elsenberg, LLP,

Chicago, IL · 60602

312-269-8037

James B Raden

Reg. 24594

Patent attorney

Highland Park, IL · 60035-3590

847-433-7090

Jared W. Radkiewicz

Reg. 70713

Patent attorney

Banner & Witcoff, Ltd.

Chicago, IL · 60606

312-463-5000

Joseph M. Radosevich· II

Reg. 72053

Patent agent

Peoria, IL · 61614

309-868-1203

Brent D Rafferty

Reg. 55806

Patent attorney

Hanna City, IL · 61536

650-279-3050

Tara M Raghavan

Reg. 55557

Patent attorney

Rakoczy Molino Mazzochi Siwak LLP

Chicago, IL · 60610

312-222-6340

Jeremy D. Raincrow

Reg. 70315

Patent agent

Evanston, IL · 60202

405-208-1205

Jacob C. Rambeau

Reg. 73820

Patent agent

Kirkland & Ellis

Chicago, IL · 60654

312-862-2000

Elaine M Ramesh

Reg. 43032

Patent attorney

Barrington, IL · 60010

847-854-8070

Thomas A Rammer

Reg. 62591

Patent attorney

Schiff Hardin LLP

Chicago, IL · 60606

312-258-5537

Justin Brian Rand

Reg. 48552

Patent attorney

McDermott Will & Emery, LLP

Chicago, IL · 60606-5096

312-984-5486

Ned William Randle

Reg. 35989

Patent attorney

Smithton, IL · 62285

618-473-2030

Denise Randolph-Okonkwo

Reg. 57501

Patent attorney

Chicago, IL · 60612

312-455-9503

Brandon M Ranieri

Reg. 83518

Patent attorney

Park Ridge, IL · 60068

847-636-2562

Arik Brenton Ranson

Reg. 43874

Patent attorney

Greer Burns and Crain, Ltd.

Chicago, IL · 60606

312-360-0080

Weisun Rao

Reg. 68824

Patent attorney

Venture Partner, LLC

Chicago, IL · 60611

312-774-9465

Wilhelm L Rao

Reg. 52151

Patent attorney

McAndrews Held and Malloy LTD

Chicago, IL · 60661

312-775-8000

Abhishek Rastogi

Reg. 65777

Patent attorney

Research In Motion Corporation

Rolling Meadows, IL · 60008

847-472-7822

Christopher Peter Rauch

Reg. 45034

Patent attorney

Glenview, IL · 60025

224-661-7769

Paul E Rauch

Reg. 38591

Patent attorney

Evan Law Group, LLC

Chicago, IL · 60616

312-876-1400

Surendra K Ravula

Reg. 65588

Patent attorney

Latham & Watkins LLP

Chicago, IL · 60611

312-876-7700

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?

2,889 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.