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New Hampshire

Patent attorneys in New Hampshire

New Hampshire hosts 206 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in New Hampshire. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include UNH Franklin Pierce School of Law, Maine Cernota & Rardin, and Pierce Atwood LLP.

Top cities in New Hampshire

Manchester46Concord44Nashua20Portsmouth10Amherst7Bedford5Salem5Gilford4Lebanon4Londonderry4Hanover4Atkinson2Dover2Hampton2Milford2Auburn2Hudson2Lee2Hollis2Meredith2

All practitioners in New Hampshire

Adam Jerald Cahoon

Reg. 903089
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

937-772-7066

Mason R. Carr

Reg. 80230
Patent agent

Pierce Atwood LLP

Portsmouth, NH · 03801

603-373-2021

Tristan A Carrier

Reg. 68143
Patent attorney

Office for Research Partnerships and Commercialization

Durham, NH · 03824

603--86-2-2022

Kevin J Carroll

Reg. 36384
Patent attorney

Grossman, Tucker, Perreault & Pfleger, PLLC

Manchester, NH · 03101

603-668-6560

Andrew P Cernota

Reg. 52711
Patent attorney

Maine Cernota & Rardin

Nashua, NH · 03063

603-886-6100

Hugh Arthur Chapin

Reg. 17871
Patent attorney

New London, NH · 03257

603-526-4365

Sibin Chen

Reg. 902562
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

214-228-4015

Gary Dean Clapp

Reg. 29055
Patent attorney

Davis and Bujold P.L.L.C.

Concord, NH · 03301

603-226-7490

Mark A. Clarner

Reg. 68105
Patent agent

Velcro USA Inc.

Manchester, NH · 03103

603-206-2404

Jeffrey S Clement

Reg. 58036
Patent agent

LSNE Contract Manufacturing

Bedford, NH · 03110

603-668-5763

Zachary A Cody

Reg. 71930
Patent attorney

Manchester, NH · 03101

603-668-6560

Naomi Catherine Connelly

Reg. 903293
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

412-498-5362

Randolph H Cook

Reg. 46216
Patent agent

Gilford, NH · 03247

603-293-0279

Daniel S Coolidge

Reg. 46071
Patent attorney

Andover, NH · 03216

603-542-2187

Paul M Coryea

Reg. 48135
Patent attorney

Enterprise Systems Technologies S.A.R.L.

Salem, NH · 03079

603-401-5888

Jessica J Costa

Reg. 41065
Patent attorney

Pica Product Development, LLC

Derry, NH · 03038

800-344-4686

James F Crittenden

Reg. 39560
Patent agent

Hollis, NH · 03049

603-566-2620

Reid Knott Cunningham

Reg. 38420
Patent attorney

DEKA Products Limited Partnership

Manchester, NH · 03101

603-669-5139

Matthew J Curran

Reg. 71094
Patent attorney

Maine Cernota & Rardin

Nashua, NH · 03063

603-886-6100

Walter Francis Dawson

Reg. 30046
Patent attorney

Maine Cernota & Rardin

Nashua, NH · 03063

603-886-6100

Colin P. Dean

Reg. 83461
Patent attorney

Hayes Soloway P.C.

Manchester, NH · 03101

603-668-1400

Phillip E Decker

Reg. 39163
Patent attorney

Hayes Soloway PC

Manchester, NH · 03101

603-696-6697

Robert R Deleault

Reg. 39165
Patent attorney

Mesmer & Delault PLLC

Manchester, NH · 03104

603-668-1971

Peter Hume Dykstra

Reg. 69520
Patent agent

Arcane Law

Amherst, NH · 03031

603-255-4642

Marina Evseeva

Reg. 901851
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

347-479-7565

Shawn L Fang

Reg. 69627
Patent agent

Concord, NH · 03301

Kevin M Farrell

Reg. 35505
Patent attorney

Pierce Atwood

Portsmouth, NH · 03801

603-373-2017

Thomas G Field· Jr

Reg. 24956
Patent attorney

UNA School Law

Concord, NH · 03301

603-228-1541 X1147

Luis A Figarella

Reg. 58300
Patent agent

Matrix Patent Agency

Nashua, NH · 03064

603-557-8420

Stephen R Finch

Reg. 42534
Patent attorney

Finch & Maloney PLLC

Manchester, NH · 03101

603-622-8456

Common questions

Do I need a patent attorney based in New Hampshire?
No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a New Hampshire-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.
How many patent attorneys are licensed in New Hampshire?
206 active USPTO-registered patent practitioners list a New Hampshire office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).
What is the difference between a patent attorney and a patent agent?
Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.
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