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 McDonnell Boehnen Hulbert & Berghoff LLP, Kirkland & Ellis LLP, and Holland & Knight LLP.

Margaret M. Dolan

Reg. 61087

Patent attorney

Kirkland & Ellis LLP

Chicago, IL · 60654

312-862-2000

Kyle B Dombeck

Reg. 80899

Patent agent

Chicago, IL · 60625

630-441-8494

Robert D Donoghue

Reg. 42493

Patent attorney

Holland & Knight LLP

Chicago, IL · 60603

312-578-6553

Justin R Donoho

Reg. 67322

Patent attorney

Grippo & Elden

Chicago, IL · 60606

312-704-7713

Breda Donovan

Reg. 52828

Patent agent

Chicago, IL · 60618

646-660-5333

Thomas Joseph Donovan

Reg. 33231

Patent attorney

Barnes & Thornburg LLP

Chicago, IL · 60690

312-214-8329

Justin E. Doop

Reg. 76773

Patent attorney

Quarles and Brady LLP

Chicago, IL · 60654-3406

312-715-5274

Vasilios D Dossas

Reg. 30745

Patent attorney

Niro, Haller and Niro

Chicago, IL · 60602

312-236-0733

Maria E. Doukas

Reg. 67084

Patent attorney

Morgan, Lewis & Bockius LLP

Chicago, IL · 60601

312-324-1454

Anthony E Dowell

Reg. 39661

Patent attorney

Dowell IP

Chicago, IL · 60610

312-291-8351

Jeffrey M Drake

Reg. 54075

Patent attorney

Litwin Kach

Chicago, IL · 60611

312-380-1706

Grantland Gilbert Drutchas

Reg. 32565

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-2121

Brandon J. Dube

Reg. 64442

Patent attorney

Hanley, Flight & Zimmerman, LLC

Chicago, IL · 60606

312-580-1020

Igor V Dubinsky

Reg. 58243

Patent attorney

Brinks Hofer Gilson & Lione

Chicago, IL · 60611-5599

312-321-4200

Shawn E. Duckworth

Reg. 62277

Patent attorney

Dennemeyer & Associates LLC

Chicago, IL · 60606

312-380-6492

Sarah J Duda

Reg. 62860

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606-6709

312-913-0001

Monika A Dudek

Reg. 47538

Patent attorney

Trading Technologies

Chicago, IL · 60606

312-476-1118

Nicholas M Dudziak

Reg. 65480

Patent attorney

Chicago, IL · 60605

312-493-4404

Christine A Dudzik

Reg. 31245

Patent attorney

Kelley, Drye & Warren LLP

Chicago, IL · 60606

312-857-2579

Gregory A Duff

Reg. 57507

Patent attorney

RMMS LLP

Chicago, IL · 60654

312-222-6315

Meggan Fitzgerald Duffy

Reg. 46674

Patent attorney

Marshall, Gerstein & Borun LLP

Chicago, IL · 60606

312-474-6300

Kathleen Farrell Duhig

Reg. 62616

Patent attorney

Office of the Illinos Attorney General

Chicago, IL · 60601

312-814-3000

Dominik P. Dukala

Reg. 74732

Patent agent

Chicago, IL · 60602

312-603-3629

Margaret M Duncan

Reg. 30879

Patent attorney

Loyola University Chicago School of Law

Chicago, IL · 60611

773-805-0354

Sydney G Duncan

Reg. 82710

Patent agent

K&L Gates LLP

Chicago, IL · 60602

205-344-3315

Mackenna E. Dunn

Reg. 83667

Patent attorney

Chicago, IL · 60610

708-334-1762

Jeffrey P Dunning

Reg. 50686

Patent attorney

Greenberg Traurig, LLP

Chicago, IL · 60601

312-456-6612

Dustin T. Dutchuk

Reg. 80147

Patent agent

Chicago, IL · 60657

701-391-5477

Scott M Dyar

Reg. 73407

Patent attorney

McDonnell Boehnen Hulbert & Berghoff LLP

Chicago, IL · 60606

312-913-3332

David H. Dziura

Reg. 61045

Patent agent

Chicago, IL · 60630

847-840-1241

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.