#1Andrew W. Smith (Centripetal Networks, Inc.)
Based in Portsmouth, NH
Patent Attorneys & Agents in Rockingham County, NH
The top-ranked patent attorneys and agents serving Rockingham County, NH are Andrew W. Smith (Centripetal Networks, Inc.), Angus J Knowles and Brian M Gaff. We list 271 patent attorneys and agents serving Rockingham 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 Rockingham County, NH. 271 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 Rockingham County
#2Angus J Knowles
Based in Atkinson, NH#3Brian M Gaff
Based in Salem, NH#4Christopher A Baxter (Pierce Atwood LLP)
Based in Portsmouth, NH#5Christopher W Jenkins
Based in Salem, NH#6Cyrus A. Miller (Pierce Atwood LLP)
Based in Portsmouth, NH#7Diane C Ferguson
Based in Salem, NH#8Donna L Lizotte (Lizotte Law Office, PLLC)
Based in East Kingston, NH#9Eileen R O'Donnell (NE Learning Systems, LLC)
Based in Londonderry, NH#10George K Stacey (Laborie Medical Technologies Corp.)
Based in Portsmouth, NH
20 more providers serving this area
- Gregory D Williams, East Kingston, NH
- Holmes W. Anderson (Anderson Gorecki LLP), Atkinson, NH
- Jennifer Lauren O'Connell (Albany International Corp.), Portsmouth, NH
- Jessica J Costa (Pica Product Development, LLC), Derry, NH
- John D Conway (Conway Consulting LLC), Exeter, NH
- John M Garvey Jr (DLA Piper LLP), Londonderry, MA
- Joseph E Funk Sr, Londonderry, NH
- Joseph Pomata (Aga Matrix, Inc.), Salem, NH
- Kara K. Verryt, Auburn, NH
- Kathleen M Brock, Hampton, NH
- Kenneth A Green, Salem, NH
- Kevin M Farrell (Pierce Atwood), Portsmouth, NH
- Kyle E. Vachon, Auburn, NH
- Madge Kanter Shafmaster (Shafmaster IP, LLC), Rye, NH
- Marc J Gorayeb (Marc J Gorayeb), Hampton, NH
- Mark D Lorusso (Lorusso Loud & Kelly, LLP), Portsmouth, NH
- MaryDilys S Anderson (Pierce Atwood LLP), Portsmouth, NH
- Mason R. Carr (Pierce Atwood LLP), Portsmouth, NH
- Melissa L.B. Lyons (Sig Sauer, Inc), Portsmouth, NH
- Nancy S Husarik, Candia, NH
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Frequently asked questions
How many patent attorneys and agents serve Rockingham County?
We list 271 patent attorneys and agents serving Rockingham County, NH: 39 based there and 232 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 Rockingham County?
The top-ranked patent attorneys and agents serving Rockingham County, NH are Andrew W. Smith (Centripetal Networks, Inc.), Angus J Knowles, Brian M Gaff, Christopher A Baxter (Pierce Atwood LLP) and Christopher W Jenkins. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Rockingham County are verified against official records?
10 of the top 10 match an active official record: Andrew W. Smith (Centripetal Networks, Inc.) (U.S. Patent and Trademark Office), Angus J Knowles (U.S. Patent and Trademark Office), Brian M Gaff (U.S. Patent and Trademark Office), Christopher A Baxter (Pierce Atwood LLP) (U.S. Patent and Trademark Office) and Christopher W Jenkins (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
Derry, Salem, Londonderry, Portsmouth, Hampton, Windham, Exeter, Raymond, Newmarket, Hampstead, Seabrook, Plaistow, Epping, Stratham, Atkinson, Sandown, Kingston, Auburn, Rye, Nottingham, Chester, Deerfield, Fremont, Newton, Brentwood, Northwood, Danville, North Hampton, Candia, Greenland, Hampton Beach, East Kingston, Hampton Falls, Kensington, Newfields, Seabrook Beach, New Castle, South Hampton, Newington