#1Andrew J Doyle (Reinhart Boerner & Van Deuren P.C.)
Based in Rockford, IL
Patent Attorneys & Agents in Winnebago County, IL
The top-ranked patent attorneys and agents serving Winnebago County, IL are Andrew J Doyle (Reinhart Boerner & Van Deuren P.C.), Andrew J Heinisch (Reinhart, Boerner, Van Deuren, P.C.) and Anthony G Vella. We list 22 patent attorneys and agents serving Winnebago County, IL. 22 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 Winnebago County, IL. 22 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 Winnebago County
#2Andrew J Heinisch (Reinhart, Boerner, Van Deuren, P.C.)
Based in Rockford, IL#3Anthony G Vella
Based in Loves Park, IL#4Brent G. Brunner
Based in Rockford, IL#5David J Archer (David J Archer M.I. Inf. Sc.)
Based in IL#6Gordon M Wright (Reinhart Boerner Van Deuren P.C.)
Based in Rockford, IL#7Jeffery Jay Makeever (Reinhart, Boerner, Van Deuren, P.C.)
Based in Rockford, IL#8Jeremy Robert Bridge (Reinhart Boerner Van Deuren, P.C.)
Based in Rockford, IL#9John P Kale (Reinhart Boerner Van Deuren, P.C.)
Based in Rockford, IL#10Lawrence D Brandel
Based in Rockford, IL
12 more providers serving this area
- Lawrence E Crowe (Lawrence E. Crowe, LLC), Loves Park, IL
- Matthew J Bussan, IL
- Michael C Payden, Rockford, IL
- Salvatore Galluzzo (AGHL Law, LLC), Rockford, IL
- Timothy P. Naill, Rockford, IL
- Robert D Anderson, IL
- Richard Scott Missimer, WI
- Paul F Donovan, WI
- Sara Ellen Stephenson Peska (Mahoney & Mahoney, LLC), IL
- Claire L. Hagrelius, IL
- Steven H Greenfield (Greenfield Invention and Pattent Consulting, Inc.), IL
- Michael C. Vega, DeKalb, IL (36 mi)
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Frequently asked questions
How many patent attorneys and agents serve Winnebago County?
We list 22 patent attorneys and agents serving Winnebago County, IL: 15 based there and 7 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 Winnebago County?
The top-ranked patent attorneys and agents serving Winnebago County, IL are Andrew J Doyle (Reinhart Boerner & Van Deuren P.C.), Andrew J Heinisch (Reinhart, Boerner, Van Deuren, P.C.), Anthony G Vella, Brent G. Brunner and David J Archer (David J Archer M.I. Inf. Sc.). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Winnebago County are verified against official records?
10 of the top 10 match an active official record: Andrew J Doyle (Reinhart Boerner & Van Deuren P.C.) (U.S. Patent and Trademark Office), Andrew J Heinisch (Reinhart, Boerner, Van Deuren, P.C.) (U.S. Patent and Trademark Office), Anthony G Vella (U.S. Patent and Trademark Office), Brent G. Brunner (U.S. Patent and Trademark Office) and David J Archer (David J Archer M.I. Inf. Sc.) (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 .
Cities in Winnebago County
Communities served
Loves Park, Machesney Park, Roscoe, South Beloit, Rockton, Winnebago, Cherry Valley, Lake Summerset, Pecatonica, Westlake Village, Durand, New Milford