#1David F. Underwood (Underwood and Associates, L.L.C.)
Based in Crystal Lake, IL
Patent Attorneys & Agents in McHenry County, IL
The top-ranked patent attorneys and agents serving McHenry County, IL are David F. Underwood (Underwood and Associates, L.L.C.), Genna S. Hibbs (Schmeiser Olsen, PLLC) and James Stanley Pristelski. We list 2471 patent attorneys and agents serving McHenry 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 McHenry County, IL. 2471 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 McHenry County
#2Genna S. Hibbs (Schmeiser Olsen, PLLC)
Based in Woodstock, IL#3James Stanley Pristelski
Based in IL#4James William Potthast (Law Offices Of Potthast and Associates)
Based in Woodstock, IL#5Jason J Schroeder
Based in Crystal Lake, IL#6Jon Carl Gealow (Jon C. Gealow, Attorney At Law)
Based in IL#7Marc J Whipple (Marc Whipple)
Based in Algonquin, IL#8Mario Frank DeRango (Intechigence, LLC)
Based in Cary, IL#9Monique Ann Morneault (Scherrer Patent & Trademark Law P.C.)
Based in Crystal Lake, IL#10Peter D. Hudson
Based in IL
20 more providers serving this area
- Rebecca JM Zobel, Fox River Grove, IL
- Stephen T Scherrer (Scherrer Patent & Trademark Law, P.C.), Crystal Lake, IL
- Thomas H. Gilman, IL
- Silvan L Larson, Gilberts, IL (16 mi)
- Brayden E. Glad, WI
- Christopher J Scott (Law Offices of Christopher J Scott, P.C.), West Dundee, IL (17 mi)
- Scott R Brewer (Arthur J. Gallagher & Co.), West Dundee, IL (17 mi)
- Robert W Slater (R. Winston Slater), IL
- Alexander Pokot (AP Patents), Williams Bay, WI (18 mi)
- Andrea K Orth (GrowIP Law Group LLC), Barrington Hills, IL (19 mi)
- Anthony L. Ricamato (GE Healthcare), Barrington Hills, IL (19 mi)
- Brie A Crawford (Crawford Intellectual Property Law LLC), Barrington Hills, IL (19 mi)
- Caroline VK Hoffman Towler, Barrington Hills, IL (19 mi)
- Charles J Malek, Barrington Hills, IL (19 mi)
- Daniel William Juffernbruch (Patents and Licensing LLC), Barrington Hills, IL (19 mi)
- Elaine M Ramesh, Barrington Hills, IL (19 mi)
- Elliot C Mendelson, Barrington Hills, IL (19 mi)
- Gary W. Grube (Caerus Institute), Barrington Hills, IL (19 mi)
- Jack R Cielak, Barrington Hills, IL (19 mi)
- James A Gabala (Law Office of ......), Barrington Hills, IL (19 mi)
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Frequently asked questions
How many patent attorneys and agents serve McHenry County?
We list 2471 patent attorneys and agents serving McHenry County, IL: 13 based there and 2458 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 McHenry County?
The top-ranked patent attorneys and agents serving McHenry County, IL are David F. Underwood (Underwood and Associates, L.L.C.), Genna S. Hibbs (Schmeiser Olsen, PLLC), James Stanley Pristelski, James William Potthast (Law Offices Of Potthast and Associates) and Jason J Schroeder. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving McHenry County are verified against official records?
10 of the top 10 match an active official record: David F. Underwood (Underwood and Associates, L.L.C.) (U.S. Patent and Trademark Office), Genna S. Hibbs (Schmeiser Olsen, PLLC) (U.S. Patent and Trademark Office), James Stanley Pristelski (U.S. Patent and Trademark Office), James William Potthast (Law Offices Of Potthast and Associates) (U.S. Patent and Trademark Office) and Jason J Schroeder (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
Crystal Lake, Algonquin, McHenry, Lake in the Hills, Huntley, Woodstock, Cary, Harvard, Island Lake, Marengo, Lakemoor, Johnsburg, Spring Grove, Wonder Lake, Fox River Grove, Lakewood, Pistakee Highlands, Richmond, Oakwood Hills, Prairie Grove, Hebron, Bull Valley, McCullom Lake, Ringwood, Union, Holiday Hills, Trout Valley, Greenwood, Chemung, Burtons Bridge, Lawrence, Ridgefield, Hartland, Solon Mills, Alden, Big Foot Prairie, Franklinville, Harmony, Coral, Riley