#1Catherine E Napjus
Based in Gilford, NH
Patent Attorneys & Agents in Belknap County, NH
The top-ranked patent attorneys and agents serving Belknap County, NH are Catherine E Napjus, Daniel S. Bretzius (Dan B Law PLLC) and Francis Edward Marino (Marino Patent Agency). We list 56 patent attorneys and agents serving Belknap County, NH. 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 Belknap County, NH. 56 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 Belknap County
#2Daniel S. Bretzius (Dan B Law PLLC)
Based in Laconia, NH#3Francis Edward Marino (Marino Patent Agency)
Based in Meredith, NH#4Gary Henry Lantner
Based in Gilford, NH#5Jonathan D Barry
Based in Meredith, NH#6Michael Joseph Persson (Lawson and Persson, PC)
Based in Laconia, NH#7Randolph H Cook
Based in Gilford, NH#8Rolf-Dieter Seichter (HTCS)
Based in Gilford, NH#9Stephen A Hirsch
Serves this area from Pittsfield, NH (17 mi)#10Jake Richter (Patent Logistics LLC)
Serves this area from Chichester, NH (18 mi)
20 more providers serving this area
- Mark S. Tremblay (Steel Paradox Intellectual Property), Holderness, NH (19 mi)
- Daniel S Coolidge, Andover, NH (19 mi)
- Alexandra L Lakshmanan, Concord, NH (21 mi)
- David J. Glass, Concord, NH (21 mi)
- David L Pflugh, Concord, NH (21 mi)
- Fouad K. Badaoui, Concord, NH (21 mi)
- Gary Dean Clapp (Davis and Bujold P.L.L.C.), Concord, NH (21 mi)
- Jay S Franklin (Davis & Bujold, P.L.L.C), Concord, NH (21 mi)
- Joanne M Martin, Concord, NH (21 mi)
- Joseph P Taylor, Concord, NH (21 mi)
- Kathy Ellen Needleman (Needleman Law Office, PLLC), Concord, NH (21 mi)
- Mark J Stevenosky Jr. (Loginov & Associates, PLLC), Concord, NH (21 mi)
- Michael J Bujold (Davis & Bujold PLLC), Concord, NH (21 mi)
- Samuel G. Williams, Concord, NH (21 mi)
- Shawn L Fang, Concord, NH (21 mi)
- Susan H Hage, Concord, NH (21 mi)
- Thomas G Field Jr (UNA School Law), Concord, NH (21 mi)
- William A Loginov (Loginov & Associates, PLLC), Concord, NH (21 mi)
- William Owen Hennessey, Concord, NH (21 mi)
- Ronald B Standler, Concord, NH (21 mi)
Request quotes
Frequently asked questions
How many patent attorneys and agents serve Belknap County?
We list 56 patent attorneys and agents serving Belknap County, NH: 8 based there and 48 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 Belknap County?
The top-ranked patent attorneys and agents serving Belknap County, NH are Catherine E Napjus, Daniel S. Bretzius (Dan B Law PLLC), Francis Edward Marino (Marino Patent Agency), Gary Henry Lantner and Jonathan D Barry. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Belknap County are verified against official records?
10 of the top 10 match an active official record: Catherine E Napjus (U.S. Patent and Trademark Office), Daniel S. Bretzius (Dan B Law PLLC) (U.S. Patent and Trademark Office), Francis Edward Marino (Marino Patent Agency) (U.S. Patent and Trademark Office), Gary Henry Lantner (U.S. Patent and Trademark Office) and Jonathan D Barry (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
Laconia, Gilford, Belmont, Meredith, Alton, Barnstead, Tilton, Gilmanton, Tilton Northfield, Sanbornton, New Hampton, Center Harbor