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 Toohey Law Group LLC, Steel Paradox Intellectual Property, and Pierce Atwood.

Top cities in New Hampshire

Manchester46 Concord44 Nashua20 Portsmouth10 Amherst7 Bedford5 Salem5 Gilford4 Lebanon4 Londonderry4 Hanover4 Atkinson2 Dover2 Hampton2 Milford2 Auburn2 Hudson2 Lee2 Hollis2 Meredith2

All practitioners in New Hampshire

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

Russel D Weinzimmer

Reg. 36717

Patent attorney

Russ Weinzimmer & Associates, PC

Milford, NH · 03055

800-621-3654

Donald G Weiss

Reg. 77929

Patent attorney

Secant IP, PLCC

Manchester, NH · 03101

603-668-6560

Katherine Dominique Frances Welch

Reg. 900679

Limited recognition

UNH Franklin Pierce School of Law

Concord, NH · 03301

504-810-8707

Stephanie E. Westcot

Reg. 78932

Patent agent

Pierce Atwood, LLP

Portsmouth, NH · 03801

603-373-2051

Jonathan B. Whitcomb

Reg. 65184

Patent attorney

Sheehan, Phinney, Bass & Green

Manchester, NH · 03101

603-627-8114

Stephen W White

Reg. 26649

Patent agent

Stephanor Consulting Svcs INC

Sunapee, NH · 03782

603-763-4987

Nathaniel A Wickliffe

Reg. 77896

Patent attorney

The Inventor's Friend Patent Law Firm

Manchester, NH · 03104

888-804-1125

Gregory D Williams

Reg. 30901

Patent attorney

S. Hampton, NH · 03827

Samuel G. Williams

Reg. 84036

Patent agent

Concord, NH · 03301

470-585-5322

Tannis L Wood

Reg. 72677

Patent agent

Amherst, NH · 03031

603-554-8143

Catherine S. Yao

Reg. 76312

Patent attorney

McLane Middleton, Professional Assoc.

Manchester, NH · 03105

603-628-1380

Vincent William Youmatz

Reg. 31683

Patent attorney

Counselor at Law

Pembroke, NH · 03275

978-470-0477

Joseph E. Young

Reg. 74456

Patent attorney

Shumaker and Sieffert LLP

Lee, NH · 03861

603-219-6042

Shou-pin Yu

Reg. 60142

Patent attorney

Nashua, NH · 03062

603-318-9148

Elizabeth L. Zanetakos

Reg. 83321

Patent agent

Nieves IP Law Group

Manchester, NH · 03101

603-323-0828

Claire Zopf

Reg. 70059

Patent attorney

Z IP Law PLLC

Manchester, NH · 03101

603-851-4148

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.