Patent Attorneys & Agents in Danbury, CT
The top-ranked patent attorneys and agents serving Danbury, CT are Iurie A Schwartz (Praxair, Inc.), Jack E Haken and James P. Breen. We list 1143 patent attorneys and agents serving Danbury, CT. 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 Danbury, CT (Western Connecticut Planning Region). 1143 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 Danbury
- Serves this area from Danbury, CT (0 mi)
#2Jack E Haken
Serves this area from Danbury, CT (2 mi)#3James P. Breen
Serves this area from Danbury, CT (2 mi)#4Marylin Klosty
Serves this area from Danbury, CT (2 mi)#5Ralph J Mancini (Praxair, Inc.)
Serves this area from Danbury, CT (2 mi)#6Robert John Kraus (Robert J. Kraus)
Serves this area from Danbury, CT (2 mi)#7Andrew G Melick (Linde Inc)
Serves this area from Danbury, CT (2 mi)#8Brian A Lemm (Pitney Bowes Inc.)
Serves this area from Danbury, CT (2 mi)#9Donald T Black (Praxair, Inc.)
Serves this area from Danbury, CT (2 mi)#10Jiangping Wu
Serves this area from Danbury, CT (2 mi)
20 more providers serving this area
- Melissa A. Tharp (Melissa A Tharp, Attorney at Law), Danbury, CT (2 mi)
- Nilay S Dalal, Danbury, CT (2 mi)
- Robert James Hampsch (Praxair, Inc), Danbury, CT (2 mi)
- Robert William Pierson Jr (FuelCell Energy, Inc.), Danbury, CT (2 mi)
- Salvatore P Pace (Praxair, Inc.), Danbury, CT (2 mi)
- Steven J Shapiro (Pitney Bowes, Inc.), Danbury, CT (2 mi)
- Thelma A Chen Cleland (Mannkind Corp.), Danbury, CT (2 mi)
- Glenn J Van Moffaert (Legal Advisors of Western Connecticut, LLC), Bethel, CT (5 mi)
- Joshua E Bennett, Bethel, CT (5 mi)
- Leo J White (P & G), Bethel, CT (5 mi)
- Susan Kathryn Pocchiari, Bethel, CT (5 mi)
- Kevin Thomas Mansfield, New Fairfield, CT (6 mi)
- Alan Ross Stempel (Boehringer Ingelheim Corp.), Ridgefield, CT (6 mi)
- Andrea V Lockenour (Boehringer-Ingelheim), Ridgefield, CT (6 mi)
- Andrew Thurkauf, Ridgefield, CT (6 mi)
- Atabak R. Royaee (DispoMeds, LLC), Ridgefield, CT (6 mi)
- Carolyn A Alenci (Boehringer Ingelheim USA Corporation), Ridgefield, CT (6 mi)
- Carson C K Fincham (RowanTree Law Group, PLLC), Ridgefield, CT (6 mi)
- David Anthony Dow (Boehringer Ingelheim Pharmacerticals, Inc.), Ridgefield, CT (6 mi)
- David L Kershner (Boehringer Ingelheim Corporation), Ridgefield, CT (6 mi)
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Frequently asked questions
How many patent attorneys and agents serve Danbury?
We list 1143 patent attorneys and agents serving Danbury, CT: 0 based there and 1143 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 Danbury?
The top-ranked patent attorneys and agents serving Danbury, CT are Iurie A Schwartz (Praxair, Inc.), Jack E Haken, James P. Breen, Marylin Klosty and Ralph J Mancini (Praxair, Inc.). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Danbury are verified against official records?
10 of the top 10 match an active official record: Iurie A Schwartz (Praxair, Inc.) (U.S. Patent and Trademark Office), Jack E Haken (U.S. Patent and Trademark Office), James P. Breen (U.S. Patent and Trademark Office), Marylin Klosty (U.S. Patent and Trademark Office) and Ralph J Mancini (Praxair, Inc.) (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 .