#1Claire L. Hagrelius
Based in IL
Patent Attorneys & Agents in DeKalb County, IL
The top-ranked patent attorneys and agents serving DeKalb County, IL are Claire L. Hagrelius, Michael C. Vega and Steven H Greenfield (Greenfield Invention and Pattent Consulting, Inc.). We list 59 patent attorneys and agents serving DeKalb County, IL. 30 of the providers shown match an active record from U.S. Patent and Trademark Office, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Patent Attorneys & Agents serving DeKalb County, IL. 59 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked patent attorneys and agents for DeKalb County
#2Michael C. Vega
Based in DeKalb, IL#3Steven H Greenfield (Greenfield Invention and Pattent Consulting, Inc.)
Based in IL#4William C Grabarek
Serves this area from IL#5Robert W Slater (R. Winston Slater)
Serves this area from IL#6Anthony Joseph Sarli Jr
Serves this area from Campton Hills, IL (20 mi)#7Jennifer A Bauer (The Law Office of Jennifer Bauer)
Serves this area from Campton Hills, IL (20 mi)#8Kraig A Jakobsen
Serves this area from Campton Hills, IL (20 mi)#9Angela C. Scott
Serves this area from IL#10Pawel A. Rzucidlo
Serves this area from IL
20 more providers serving this area
- Allen Lee Landmeier (Smith Landmeier & Elders P.C.), Geneva, IL (22 mi)
- Edward Walter Remus (Edward W. Remus), Geneva, IL (22 mi)
- James J Drake (Drake & Associates), Geneva, IL (22 mi)
- John Andrew Schaerli (Miner Entrprs INC), Geneva, IL (22 mi)
- John L Schmitt, Geneva, IL (22 mi)
- Michael Benedict Anastasio, Geneva, IL (22 mi)
- Sarah M Walkington, Geneva, IL (22 mi)
- Todd N Severns, Geneva, IL (22 mi)
- Richard L Dornfeld, Aurora, IL (23 mi)
- Joan Pennington (Joan Pennington Law Office), Batavia, IL (24 mi)
- Priya S. Dave, Batavia, IL (24 mi)
- Silvan L Larson, Gilberts, IL (25 mi)
- James Stanley Pristelski, IL
- Michael Blain Martin (MB MARTIN LLC), Aurora, IL (26 mi)
- Helen S Cordell, Yorkville, IL (26 mi)
- Mark J Buonaiuto, Yorkville, IL (26 mi)
- Paul George Fina, Yorkville, IL (26 mi)
- Christopher J Scott (Law Offices of Christopher J Scott, P.C.), West Dundee, IL (28 mi)
- Scott R Brewer (Arthur J. Gallagher & Co.), West Dundee, IL (28 mi)
- Andrew J Doyle (Reinhart Boerner & Van Deuren P.C.), Rockford, IL (30 mi)
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Frequently asked questions
How many patent attorneys and agents serve DeKalb County?
We list 59 patent attorneys and agents serving DeKalb County, IL: 3 based there and 56 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which patent attorneys and agents serve DeKalb County?
The top-ranked patent attorneys and agents serving DeKalb County, IL are Claire L. Hagrelius, Michael C. Vega, Steven H Greenfield (Greenfield Invention and Pattent Consulting, Inc.), William C Grabarek and Robert W Slater (R. Winston Slater). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving DeKalb County are verified against official records?
10 of the top 10 match an active official record: Claire L. Hagrelius (U.S. Patent and Trademark Office), Michael C. Vega (U.S. Patent and Trademark Office), Steven H Greenfield (Greenfield Invention and Pattent Consulting, Inc.) (U.S. Patent and Trademark Office), William C Grabarek (U.S. Patent and Trademark Office) and Robert W Slater (R. Winston Slater) (U.S. Patent and Trademark Office), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What is the difference between a patent attorney and a patent agent?
Both are registered with the USPTO to prepare and prosecute patent applications. Patent attorneys are also licensed lawyers and can handle litigation and other legal matters; agents cannot.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Communities served
DeKalb, Sycamore, Sandwich, Genoa, Cortland, Hinckley, Somonauk, Kirkland, Waterman, Maple Park, Malta, Kingston, Shabbona