Patent Attorneys in Illinois

95 patent professionals in 25 cities

Updated March 2026

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Cities

Barrington 2 Champaign 4 Chicago 54 Crystal Lake 3 Naperville 5 Northbrook 2 Oak Forest 4 Peoria 3 Wheaton 2
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All Professionals in Illinois

Urban & Burt, LTD.

Urban & Burt, LTD.

Law Firm
Oak Forest, IL
ElectricalAerospace
4.3 (33)
Free consult
L

Lesley A. Wallerstein, LLC

Law Firm
Northbrook, IL
5 (27)
Free consult
King Patent Law, PLLC

King Patent Law, PLLC

Law Firm
Champaign, IL
Mechanical
4.8 (21)
C

Chiacchio IP

Patent Attorney
Chicago, IL
AI and SoftwareElectricalBiotechnology
5 (19)
F

Faier & Faier Trademarks and Patents

Law Firm
Chicago, IL
4.8 (18)
Free consult
A

AU LLC

Law Firm
Chicago, IL
AI and Software
4.8 (17)
Underwood & Associates, LLC

Underwood & Associates, LLC

Law Firm
Crystal Lake, IL
ElectricalMechanicalChemical
5 (15)
Free consult
N

Nyman IP LLC

Law Firm
Chicago, IL
5 (15)
Greer, Burns & Crain, Ltd

Greer, Burns & Crain, Ltd

Law Firm
Chicago, IL
AI and SoftwareElectricalMechanical
1.2 (12)
P

Phillips & Bathke, P.C.

Law Firm
Peoria, IL
5 (12)
P

Phillips & Bathke, P.C.

Law Firm
Chicago, IL
5 (9)
Hanson Law Group

Hanson Law Group

Law Firm
Barrington, IL
5 (9)
Z

Ziliak Law, LLC

Law Firm
Chicago, IL
AI and Software
4.1 (8)
T

The Law Offices of Konrad Sherinian, LLC

Law Firm
Naperville, IL
Electrical
5 (8)
Free consult
Clements IP, LLC

Clements IP, LLC

Law Firm
Naperville, IL
MechanicalBiotechnology
5 (6)
Free consult
Global IP Law Group LLC

Global IP Law Group LLC

Law Firm
Chicago, IL
3 (6)
N

Nixon Peabody LLP - Chicago Office

Law Firm
Chicago, IL
AI and SoftwareMechanicalAerospace
3.6 (5)
SpencePC

SpencePC

Law Firm
Chicago, IL
AI and SoftwareElectricalMechanical
4.2 (5)
Free consult
T

The Law Offices of Konrad Sherinian, LLC

Law Firm
Chicago, IL
ElectricalMechanicalBiotechnology
5 (4)
Free consult
Law Office of Edgar A Vega

Law Office of Edgar A Vega

Patent Attorney
Chicago, IL
4.8 (4)
Vitale, Vickrey, Niro, Solon & Gasey LLP

Vitale, Vickrey, Niro, Solon & Gasey LLP

Law Firm
Chicago, IL
5 (4)
R

Rock Fusco & Connelly, LLC

Law Firm
Chicago, IL
3 (4)
C

Corridor Law Group, PC

Law Firm
Naperville, IL
5 (4)
E

Erickson Law Group, PC

Law Firm
Wheaton, IL
Biotechnology
5 (3)
Howard & Howard Attorneys PLLC - Chicago

Howard & Howard Attorneys PLLC - Chicago

Law Firm
Chicago, IL
AI and SoftwareMechanical
2.3 (3)
M

Meroni & Meroni

Law Firm
Barrington, IL
3.3 (3)
Rosenbaum IP, P.C.

Rosenbaum IP, P.C.

Law Firm
Northbrook, IL
ElectricalMechanicalBiotechnology
5 (2)
Free consult
T

Thorelli & Associates

Law Firm
Chicago, IL
5 (2)
Free consult
Heyl Royster

Heyl Royster

Patent Attorney
Champaign, IL
AI and SoftwareElectricalMechanical
3.5 (2)
Edmund G. Urban III

Edmund G. Urban III

Patent Attorney
Oak Forest, IL
ElectricalMechanical
5 (2)
Free consult
C

Chicago IP Law

Patent Attorney
Naperville, IL
AI and SoftwareMechanicalElectrical
5 (2)
H

Holly Patent Law LLC

Law Firm
Chicago, IL
5 (2)
A

Allgaier Patent Solutions ®

Law Firm
Chicago, IL
MechanicalBiotechnologyMedical Devices
5 (2)
Singleton Law Firm P.C.

Singleton Law Firm P.C.

Law Firm
Champaign, IL
AI and Software
3 (2)
Free consult
Robin Fahlberg, Attorney at Law

Robin Fahlberg, Attorney at Law

Patent Attorney
Peoria, IL
4.5 (2)
Norvell IP llc

Norvell IP llc

Law Firm
Chicago, IL
Medical Devices
3 (2)
Naughton James P

Naughton James P

Patent Attorney
Chicago, IL
5 (1)
Crossan Intellectual Property Law, LLC

Crossan Intellectual Property Law, LLC

Law Firm
Chicago, IL
1 (1)
N

Nyman IP LLC

Law Firm
Crystal Lake, IL
5 (1)
Marshall, Gerstein & Borun LLP

Marshall, Gerstein & Borun LLP

Law Firm
Chicago, IL
AI and SoftwareElectricalMechanical
5 (1)
Howard & Howard Attorneys PLLC - Peoria

Howard & Howard Attorneys PLLC - Peoria

Law Firm
Peoria, IL
AI and SoftwareMechanical
5 (1)
Irwin IP LLP

Irwin IP LLP

Law Firm
Chicago, IL
ElectricalMechanicalClean Energy
5 (1)
Russell E. Cass

Russell E. Cass

Patent Attorney
Chicago, IL
AI and Software
5 (1)
A

Advitam IP LLC

Law Firm
Chicago, IL
5 (1)
K

Kurt A. Mathas - Winston & Strawn LLP

Law Firm
Chicago, IL
5 (1)
E

Edward J. Burt

Patent Attorney
Oak Forest, IL
Electrical
Cheryl C. Zeleznak

Cheryl C. Zeleznak

Patent Attorney
Oak Forest, IL
Electrical
Oliver D Yang

Oliver D Yang

Patent Attorney
Chicago, IL
B

Brian J. Nisbet - Winston & Strawn LLP

Law Firm
Chicago, IL
v

von Briesen & Roper, s.c.

Law Firm
Chicago, IL
1 (0)
I

Ivan M. Poullaos - Winston & Strawn LLP

Law Firm
Chicago, IL
D

David P. Dalke - Winston & Strawn LLP

Law Firm
Chicago, IL
L

Law Offices of Mark E. Wiemelt, P.C.

Law Firm
Chicago, IL
K

Kimball R. Anderson - Winston & Strawn LLP

Law Firm
Chicago, IL
B

Bryce A. Cooper - Winston & Strawn LLP

Law Firm
Chicago, IL
J

John R. McNair - Winston & Strawn LLP

Law Firm
Chicago, IL
J

Julia Mano Johnson - Winston & Strawn LLP

Law Firm
Chicago, IL
V

Vivek V. Krishnan - Winston & Strawn LLP

Law Firm
Chicago, IL
Boehnen, Daniel A (McDonnell Boehnen Hulbert & Bergoff LLP)

Boehnen, Daniel A (McDonnell Boehnen Hulbert & Bergoff LLP)

Law Firm
Chicago, IL
AI and SoftwareElectricalMechanical
Samantha Maxfield Lerner - Winston & Strawn LLP

Samantha Maxfield Lerner - Winston & Strawn LLP

Law Firm
Chicago, IL
Maureen L. Rurka - Winston & Strawn LLP

Maureen L. Rurka - Winston & Strawn LLP

Law Firm
Chicago, IL
C

Christopher B. Essig - Winston & Strawn LLP

Law Firm
Chicago, IL
J

John E. Drosick - Winston & Strawn LLP

Law Firm
Chicago, IL
Sarah J. Kalemeris - Winston & Strawn LLP

Sarah J. Kalemeris - Winston & Strawn LLP

Law Firm
Chicago, IL
Chapman Spingola, LLP

Chapman Spingola, LLP

Law Firm
Chicago, IL
G

George C. Lombardi - Winston & Strawn LLP

Law Firm
Chicago, IL
C

Cook Alex Ltd.

Patent Attorney
Naperville, IL
Free consult
Christopher Hall & Associates

Christopher Hall & Associates

Law Firm
Chicago, IL
Meyer Capel, PC: Matt C. Deering

Meyer Capel, PC: Matt C. Deering

Law Firm
Champaign, IL
Electrical
K

Klintworth and Rozenblat IP LLC

Law Firm
Chicago, IL
Medical Devices
Henry Query, P.C.

Henry Query, P.C.

Law Firm
Wheaton, IL
MechanicalMedical DevicesAerospace
Crawford Intellectual Property Law LLC

Crawford Intellectual Property Law LLC

Law Firm
Crystal Lake, IL
AI and SoftwareMechanical
Free consult
Leydig Voit & Mayer Ltd

Leydig Voit & Mayer Ltd

Law Firm
Chicago, IL
AI and SoftwareElectricalBiotechnology
Cook Alex Ltd.

Cook Alex Ltd.

Patent Attorney
Chicago, IL
Free consult
APEX Patents & Licensing

APEX Patents & Licensing

Law Firm
Chicago, IL
Free consult
Hampton Steven J

Hampton Steven J

Patent Attorney
Chicago, IL
T

Torchman IP LLC

Law Firm
Chicago, IL
Jerisat & Kostopoulos, LLC

Jerisat & Kostopoulos, LLC

Law Firm
Chicago, IL
M

Michael K. Nutter - Winston & Strawn LLP

Law Firm
Chicago, IL

Other Cities in Illinois

Additional patent professionals across Illinois.

Simmons Firm Llc: Bono A Randall

Simmons Firm Llc: Bono A Randall

Law Firm
Alton, IL
BiotechnologyMedical Devices
Free consult
IpHorgan Limited (Buffalo Grove)

IpHorgan Limited (Buffalo Grove)

Patent Attorney
Buffalo Grove, IL
ElectricalMechanicalBiotechnology
4.2 (5)
S

Sean Goodwin Legal Services

Patent Attorney
Evanston, IL
MechanicalBiotechnology
5 (1)
T

True Lawyer - Evergreen Park

Law Firm
Evergreen Park, IL
5 (1)
Free consult
Varboncouer Law

Varboncouer Law

Patent Attorney
Frankfort, IL
5 (2)
Eric Lieberman Attorney & Consultant

Eric Lieberman Attorney & Consultant

Law Firm
Galena, IL
4 (1)
Goytia & Associates - US office

Goytia & Associates - US office

Law Firm
Glen Ellyn, IL
William Park & Associates Ltd.

William Park & Associates Ltd.

Law Firm
Hinsdale, IL
ElectricalMechanical
3.9 (7)
The Palmatier Law Office

The Palmatier Law Office

Law Firm
Itasca, IL
5 (7)
E

Evans & Dixon, LLC

Law Firm
Joliet, IL
Mechanical
L

Law Offices of Mark E. Wiemelt, P.C.

Law Firm
La Grange, IL
J

Jansson Munger McKinley & Kirby Ltd.

Law Firm
Lake Forest, IL
Marshall H. Hong, Attorney at Law

Marshall H. Hong, Attorney at Law

Patent Attorney
Skokie, IL
3.5 (37)
P

Pauley Erickson & Swanson

Law Firm
South Barrington, IL
Biotechnology
Ivy Patent & Trademark Law - Naperville

Ivy Patent & Trademark Law - Naperville

Law Firm
Warrenville, IL
Free consult
S

Schmeiser Olsen --Chicago-area Office

Patent Attorney
Woodstock, IL
ElectricalBiotechnology
4 (4)

Frequently Asked Questions

How much does a patent attorney cost in Illinois?

Based on pricing data from 5 attorneys in Illinois, the average cost for a provisional patent application is $3,500 and a utility patent is $7,900. Use our cost calculator for a personalized estimate.

How many patent attorneys are in Illinois?

There are 95 patent professionals listed across 25 cities in Illinois. This includes patent attorneys, patent agents, and intellectual property law firms.

What specialties do Illinois patent attorneys handle?

Patent attorneys in Illinois most commonly handle mechanical, electrical, software, and biotechnology patents. Browse by city to find attorneys near you with the right specialty.

Do Illinois patent attorneys offer free consultations?

Yes, 19 of 95 patent professionals in Illinois offer free initial consultations.