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 Choate, Hall & Stewart LLP, Wilson Sonsini Goodrich & Rosati, and Fish & RichardsonP.C..

Top cities in Massachusetts

All practitioners in Massachusetts

Charles E Lyon

Reg. 56630

Patent attorney

Choate, Hall & Stewart LLP

Boston, MA · 02110

617-248-4793

Zoe R Lyon

Reg. 83511

Patent agent

Boston, MA · 02109

970-989-4193

Laura M Lyons

Reg. 81666

Patent agent

Boston, MA · 02210

617-646-1632

Longle Ma

Reg. 81977

Patent attorney

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02108

617-598-7889

Xiaochu Ma

Reg. 79911

Patent agent

Fish & RichardsonP.C.

Boston, MA · 02210

617-956-5994

Kevin Macdonald

Reg. 74522

Patent attorney

Wolf Greenfield, P.C.

Boston, MA · 02210

617-646-8497

Donald J MacDonald

Reg. 42823

Patent attorney

Coleman & MacDonald Law Office

Saugus, MA · 01906

781-922-8210

Leslie C MacGregor

Reg. 35245

Patent attorney

Newton, MA · 02458

617-429-7809

Jessica Tyrus Mackay

Reg. 64742

Patent attorney

BioNTech SE

Cambridge, MA · 02139

708-373-1528

Meredith Virginia Mackay

Reg. 903048

Limited recognition

Northeastern University School of Law

Boston, MA · 02115

703-638-3260

Todd K Macklin

Reg. 73653

Patent agent

Cooley LLP

Boston, MA · 02116-3736

617-937-2374

Keith D MacMillan

Reg. 47212

Patent attorney

Tango Therapeutics

Boston, MA · 02215

425-301-4708

Laura K Madden

Reg. 48352

Patent attorney

Schrodinger Inc.

Cambridge, MA · 02142

617-207-0024

Sarah J. Madden

Reg. 81336

Patent agent

Boston, MA · 02111

212-692-6226

Tomohiro Maeda

Reg. 800029

Limited recognition

Takeda Pharmaceuticals U.S.A., Inc.

Cambridge, MA · 02139

781-482-9222

David Michael Magee

Reg. 51982

Patent attorney

Armstrong Teasdale LLP

Boston, MA · 02199

617-824-5131

Ivana Magovcevic-Liebisch

Reg. 43338

Patent attorney

Axcella Health

Cambridge, MA · 02139

617-669-3697

Stanley C Mah

Reg. 46189

Patent agent

Beth Israel Deaconess Medical Center

Boston, MA · 02215

617-667-0573

Wendell B Mah

Reg. 45727

Patent attorney

WESTON, MA · 02493

508-333-7472

Dana C Mahadeo

Reg. 73992

Patent attorney

Alnylam Pharmaceuticals Inc.

Cambridge, MA · 02142

617-682-4315

Sanjeev K Mahanta

Reg. 64174

Patent agent

Southborough, MA · 01772

508-308-6039

Ian A. Mahany-Horton

Reg. 79306

Patent attorney

Saul Ewing LLP

Boston, MA · 02116

617-912-0903

Andrew G. Maher

Reg. 79399

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8596

Giordana H Mahn

Reg. 72726

Patent attorney

Fish & Richardson PC

Boston, MA · 02210

617-521-7845

David R Mahoney

Reg. 53254

Patent attorney

Lion Bioscience

Cambridge, MA · 02139

617-245-5431

Donald Edwin Mahoney

Reg. 26639

Patent attorney

Wellesley, MA · 02482

781-235-0081

Matthew E. Maitland

Reg. 79036

Patent agent

Perceptive Technologies

Boston, MA · 02111

978-460-5977

A. Dorothea Major

Reg. 83167

Patent agent

Boston, MA · 02134

720-514-0154

Hunter P. Malasky

Reg. 76617

Patent agent

Brookline, MA · 02446

561-329-7196

Hunter C. Malboeuf

Reg. 79730

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-8739

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.