#1Aaron H Min (Ruby Cleaners Outlet)
Based in Wheaton, IL
Patent Attorneys & Agents in DuPage County, IL
The top-ranked patent attorneys and agents serving DuPage County, IL are Aaron H Min (Ruby Cleaners Outlet), Adam R Andrea and Adam R Wirtz (Roscich & Martel Law Firm, LLC). We list 2470 patent attorneys and agents serving DuPage 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 DuPage County, IL. 2470 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 DuPage County
#2Adam R Andrea
Based in Downers Grove, IL#3Adam R Wirtz (Roscich & Martel Law Firm, LLC)
Based in Naperville, IL#4Aleksas D. Siliunas
Based in Lisle, IL#5Alexa L. Dian
Based in Elmhurst, IL#6Amin S Khan
Based in Bartlett, IL#7Amrit Panda (Amrit Panda)
Based in Naperville, IL#8Amy M Kosowski (Now Health Group, Inc.)
Based in Bloomingdale, IL#9Anastasios G Garbis
Based in Hinsdale, IL#10Andrea Alaine F Yu
Based in Bartlett, IL
20 more providers serving this area
- Andrew J Mayer, Downers Grove, IL
- Anne V Lotsoff, Hinsdale, IL
- Anthony J Dezonno, Bloomingdale, IL
- Audrey W Charles (Ball Horticultural Company), West Chicago, IL
- Austin Victor (Knowles Electronics, LLC), Itasca, IL
- Barbara R Greenberg, Hinsdale, IL
- Barry Frederick Irwin (Irwin IP, LLC), Burr Ridge, IL
- Bayarjargal T. Sereenen (TSEGTS LAW GROUP LLC), Naperville, IL
- Brent A Batzer (Upadhye Tang LLP), Hinsdale, IL
- Brent K. Whitlock (Brent K. Whitlock, Ph.D., Attorney at Law), Naperville, IL
- Brian J Murray, Glen Ellyn, IL
- Brian P Crannell (Knowles Corporation), Itasca, IL
- Brittany M. Martinez (Ambir Technology, Inc.), Wood Dale, IL
- Carolyn M Sloane, Naperville, IL
- Catherine D Gates (Entegris), Aurora, IL
- Catherine I Klima-Silberg (Videojet Technologies Inc.), Wood Dale, IL
- Chadwick A Sullivan (Dover Corporation), Downers Grove, IL
- Charles A Ginnings (Nelson Bumgardner Conroy PC), Burr Ridge, IL
- Charles William Baldridge Connors (Magneco/Metrel INC), Addison, IL
- Christian H. Hallerud, Wheaton, IL
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Frequently asked questions
How many patent attorneys and agents serve DuPage County?
We list 2470 patent attorneys and agents serving DuPage County, IL: 208 based there and 2262 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 DuPage County?
The top-ranked patent attorneys and agents serving DuPage County, IL are Aaron H Min (Ruby Cleaners Outlet), Adam R Andrea, Adam R Wirtz (Roscich & Martel Law Firm, LLC), Aleksas D. Siliunas and Alexa L. Dian. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving DuPage County are verified against official records?
10 of the top 10 match an active official record: Aaron H Min (Ruby Cleaners Outlet) (U.S. Patent and Trademark Office), Adam R Andrea (U.S. Patent and Trademark Office), Adam R Wirtz (Roscich & Martel Law Firm, LLC) (U.S. Patent and Trademark Office), Aleksas D. Siliunas (U.S. Patent and Trademark Office) and Alexa L. Dian (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 DuPage County
Communities served
Elmhurst, Lombard, Bartlett, Carol Stream, Hanover Park, Addison, Woodridge, Glendale Heights, Glen Ellyn, West Chicago, Westmont, Lisle, Roselle, Bloomingdale, Villa Park, Darien, Bensenville, Hinsdale, Warrenville, Wood Dale, Burr Ridge, Winfield, Itasca, Willowbrook, Clarendon Hills, Oak Brook, Oakbrook Terrace, Wayne