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 McNeill PLLC, WilmerHale, and Sanofi.

Top cities in Massachusetts

All practitioners in Massachusetts

Victoria SunHsuan-Chou Lee

Reg. 70240

Patent attorney

McNeill PLLC

Cambridge, MA · 02140

732-704-3972

William H Lee

Reg. 27920

Patent attorney

Boston, MA · 02113

857-284-3775

Yvonne S Lee

Reg. 72162

Patent attorney

WilmerHale

Boston, MA · 02109

617-526-6692

David R Lefebvre

Reg. 72868

Patent attorney

Sanofi

Cambridge, MA · 02141

617-685-5338

Scott A Lefton

Reg. 53200

Patent agent

Design Innovation

Melrose, MA · 02176

781-883-5666

Debra C Leggett

Reg. 39271

Patent attorney

Englander, Leggett & Chicoine, P.C.

Boston, MA · 02108

617-723-7440

Joel Edward Lehrer

Reg. 56401

Patent attorney

Goodwin Procter LLP

Boston, MA · 02210

617-570-1000

Emily K. Lehrman

Reg. 81298

Patent agent

Clark + Elbing LLP

Boston, MA · 02110

617-428-7023

Yanda Lei

Reg. 74166

Patent agent

Factorial Inc.

Billerica, MA · 01821

617-315-9733

Kenton E. Leidy

Reg. 83958

Patent agent

Pierce Atwood LLP

Boston, MA · 02110

574-315-7747

Sara A. Leiman

Reg. 71228

Patent attorney

Harvard University

Cambridge, MA · 02138

617-495-0532

Kevin S Lemack

Reg. 32579

Patent attorney

Nields, Lemack & Frame, LLC

Leominster, MA · 01453

508-898-1818

Gregory D Len

Reg. 61517

Patent attorney

Troutman Pepper Locke

Boston, MA · 02110

617-204-5100

Sardiaa S Leney

Reg. 70841

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8000

Craig K Leon

Reg. 33293

Patent attorney

Wr Grace and Co. - Conn

Cambridge, MA · 02140

617-498-4584

Sydney J. A. Leonardi

Reg. 84654

Patent agent

Boston, MA · 02210

617-368-2128

Mark S Leonardo

Reg. 41433

Patent attorney

Nutter McClennen & Fish LLP

Boston, MA · 02210

617-439-2401

Lesley A Leonessa

Reg. 51936

Patent attorney

Dell-EMC

Hopkinton, MA · 01748

512-720-5176

Dorothy D. LeRay

Reg. 80489

Patent attorney

McNeill PLLC

Cambridge, MA · 02140

929-205-3030

Adam P Lerner

Reg. 67512

Patent attorney

Myriant Corporation

Woburn, MA · 01801

781-569-6306

Elizabeth T Lesniewski-Laas

Reg. 53206

Patent attorney

Cohasset, MA · 02025

781-383-8899

Troy R Lester

Reg. 36200

Patent attorney

Acushnet Company

Fairhaven, MA · 02719

508-979-3534

Ka Chun Leung

Reg. 65039

Patent attorney

Massachusetts Institute of Technology

Cambridge, MA · 02142

617-253-9253

Daniel A. Lev

Reg. 67471

Patent attorney

Intellia Therapeutics, Inc.

Cambridge, MA · 02139

857-706-1099

Aaron J Levangie

Reg. 54758

Patent attorney

Pepper Hamilton, LLP

Boston, MA · 02111

617-956-4350

Andrea W Levesque

Reg. 61013

Patent attorney

Smith Baluch LLP

Boston, MA · 02116

617-651-0213

Simona A Levi-Minzi

Reg. 43750

Patent attorney

Cell Signaling Technology, Inc.

Danvers, MA · 01923

978-867-2311

Carla M Levy

Reg. 54267

Patent attorney

Lowie, Lando & Anasnasi, LLP

Cambridge, MA · 02142

617-395-7000

Elizabeth Anne Levy

Reg. 34375

Patent attorney

Siemens Healthcare Diagnostics Inc.

Walpole, MA · 02032

508-660-4704

Paul E Lewkowicz

Reg. 44870

Patent attorney

Southborough, MA · 01772-1824

508-479-7396

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.