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New Hampshire

Patent attorneys in New Hampshire

New Hampshire hosts 196 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, Finch & Maloney PLLC, and HTCS.

Top cities in New Hampshire

Manchester46Concord34Nashua19Portsmouth10Amherst7Salem5Bedford5Hanover4Gilford4Lebanon4Londonderry4Hampton2Meredith2Newington2Dover2Hollis2Auburn2Milford2Hudson2Atkinson2

All practitioners in New Hampshire

Jack R. Salvatore

Reg. 79970
Patent agent

Manchester, NH · 03104

603-440-1308

Michael P Santorsa

Reg. 34919
Patent attorney

Manchester, NH · 03108-6521

603-472-8478

Kyle F Schlueter

Reg. 54912
Patent attorney

Finch & Maloney PLLC

Manchester, NH · 03101

603--62-2-8456

Rolf-Dieter Seichter

Reg. 63542
Patent agent

HTCS

Gilford, NH · 03249

603-556-9465

Jeffrey E Semprebon

Reg. 41301
Patent agent

Semprebon Patent Services

CLAREMONT, NH · 03743

603-477-8466

Madge Kanter Shafmaster

Reg. 35211
Patent attorney

Shafmaster IP, LLC

Rye, NH · 03870

617-257-9180

Keri E Sicard

Reg. 63575
Patent attorney

Virtual IP Law

Manchester, NH · 03101

603-520-6616

William Peter Skladony

Reg. 33787
Patent attorney

Henniker, NH · 03242

603-428-6341

Andrew W. Smith

Reg. 77725
Patent attorney

Centripetal Networks, Inc.

Portsmouth, NH · 03801

603-319-4605

George K Stacey

Reg. 35688
Patent attorney

Laborie Medical Technologies Corp.

Portsmouth, NH · 03801

901-488-0451

Ronald B Standler

Reg. 43931
Patent attorney

Concord, NH · 03302-3780

603-225-0218

Tanner Michael Stauss

Reg. 901002
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

775-741-0897

Mary M Steubing

Reg. 37946
Patent attorney

Amherst, NH · 03031

617-901-6786

Mark J Stevenosky· Jr.

Reg. 63298
Patent attorney

Loginov & Associates, PLLC

Concord, NH · 03301

201-777-0117

Tongyao Su

Reg. 901857
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

603-688-3240

Todd A Sullivan

Reg. 47117
Patent attorney

Hayes Soloway, P.C.

Manchester, NH · 03101

603-668-1400

Stephanie Monique Swann

Reg. 902566
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

240-206-1705

Farah Tahmasbi

Reg. 903096
Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

805-679-3868

William P Taylor

Reg. 62928
Patent agent

Allegro Microsystems, LLC

Manchester, NH · 03103

603-626-2445

Michelle Saquet Temple

Reg. 48834
Patent attorney

Virtual IP Law LLC

Manchester, NH · 03101

603-729-8853

Ross W Terrio

Reg. 53681
Patent agent

Manchester, NH · 03103

603-641-6064

Gil T. Tolley

Reg. 84127
Patent agent

Dover, NH · 03820

603-767-9280

Maureen K Toohey

Reg. 56457
Patent attorney

Toohey Law Group LLC

Manchester, NH · 03101

603-206-0200

Mark S. Tremblay

Reg. 57573
Patent agent

Steel Paradox Intellectual Property

Holderness, NH · 03245

972-415-1000

Kara K. Verryt

Reg. 68370
Patent agent

Auburn, NH · 03032

Juan M. Villar

Reg. 34271
Patent attorney

Hanover, NH · 03755

516-427-1156

Shannon M Vittengl

Reg. 55548
Patent attorney

Pierce Atwood

Portsmouth, NH · 03801

603-373-2089

Todd A Wagner

Reg. 35399
Patent attorney

Law Office Of Todd A. Wagner

Hampton Falls, NH · 03844

603-686-3934

Jeremy T Walker

Reg. 45191
Patent attorney

McLane Graf Raulerson and Middleton, P. A.

Manchester, NH · 03105-0326

603-628-1431

Janine J Weins

Reg. 30504
Patent agent

AHF Organic Producers, LLC

Lyme, NH · 03768-0316

603-795-2148

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?
196 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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