Massachusetts

Patent attorneys in Massachusetts

Massachusetts hosts 2,875 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 Massachusetts. 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 Shire Pharmaceuticals, Quinn Emanuel Urquhart & Sullivan LLP, and Altman & Martin.

Top cities in Massachusetts

All practitioners in Massachusetts

Karen V Martin

Reg. 61652

Patent attorney

Shire Pharmaceuticals

Lexington, MA · 02421

781-482-0758

Lauren Nelson Martin

Reg. 61112

Patent attorney

Quinn Emanuel Urquhart & Sullivan LLP

Boston, MA · 02199

617-712-7105

Steven Keith Martin

Reg. 38542

Patent attorney

Altman & Martin

Boston, MA · 02108

617-523-3515

Eric J Martineau

Reg. 66456

Patent attorney

EMD Millipore Corp

Burlington, MA · 01803

978-715-1928

Sebastian Martinek

Reg. 52413

Patent attorney

Jones Day

Boston, MA · 02110

617-449-6888

Alejandro Martinez

Reg. 58163

Patent attorney

Sanofi

Cambridge, MA · 02141

617-685-5935

Leigh John Martinson

Reg. 50749

Patent attorney

McCarter & English, LLP

Boston, MA · 02110

617-449-6500

James E Maslow

Reg. 29953

Patent attorney

James E. Maslow, Esq

Gloucester, MA · 01930

781-269-9690

James C Mason

Reg. 50255

Patent attorney

Yamauchi & Mason LLC

Wellesley, MA · 02482

617-959-1991

Dominic E Massa

Reg. 44905

Patent attorney

Wilmer Cutler Pickering Hale and Dorr, LLP

Boston, MA · 02109

617-526-6386

Mark M Masutani

Reg. 77526

Patent agent

Pandiscio & Pandiscio

Weston, MA · 02493

781-290-0060

Elizabeth E Mathiesen

Reg. 54696

Patent agent

Sanofi Pasteur

Cambridge, MA · 02139

617-761-4341

Andrew D. Mathis

Reg. 80350

Patent attorney

Wolf, Greenfield & Sacks

Boston, MA · 02210

617-646-8562

Joshua S Matloff

Reg. 65390

Patent attorney

Foley Hoag

Boston, MA · 02210

617-832-1775

Joseph S Matrisciano· Jr

Reg. 44225

Patent attorney

US Food and Drug Administration

Winchester, MA · 01890

781-729-5700 X736

Joshua Trevor Matt

Reg. 55435

Patent attorney

Akamai Technologies, Inc.

Cambridge, MA · 02142

617-444-3981

Daniel S Matthews

Reg. 63277

Patent attorney

Frensenius Medical Care

Waltham, MA · 02451

781-699-7872

Sam S. Matthews

Reg. 79458

Patent attorney

Cooley LLP

Boston, MA · 02116-3736

617-937-2388

Michael A. Mattoni

Reg. 71514

Patent agent

Fox Rothschild LLP

Boston, MA · 02110

617-848-4005

Thomas J Mauch

Reg. 56686

Patent attorney

Anika Therapeutics, Inc.

Bedford, MA · 01730

941-306-3763

Margit Maus

Reg. 34468

Patent attorney

Maus & Associates

Newton, MA · 02168

617-969-2644

Tyler Lowry Maxwell

Reg. 903049

Limited recognition

Northeastern University School of Law

Boston, MA · 02115

501-454-7149

Erin M. May

Reg. 81386

Patent attorney

Cambridge, MA · 02139

617-251-9709

Allison E. Mayne

Reg. 82354

Patent agent

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8000

Elisa C. Maynor

Reg. 82971

Patent agent

McNeill PLLC

Cambridge, MA · 02142

617-430-4740885

Philip T Mazoki

Reg. 68689

Patent attorney

Hamilton, Brook, Smith & Reynolds

Boston, MA · 02210

617-607-5900

Maureen E. Mazza

Reg. 75792

Patent agent

Bergman LLC

Cambridge, MA · 02140

781-648-8870

Robert A Mazzarese

Reg. 42852

Patent attorney

Strategic Patents, P.C.

Needham, MA · 02492

617-916-2658

James M McAleenan

Reg. 56820

Patent attorney

Reading, MA · 01867

603-812-1182

Christopher W McAndrew

Reg. 65089

Patent attorney

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02109-1700

617-598-7808

Common questions

Do I need a patent attorney based in Massachusetts?

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 Massachusetts-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 Massachusetts?

2,875 active USPTO-registered patent practitioners list a Massachusetts 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.