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, Foghorn Therapeutics Inc., and Hayes, Messina, Gilman & Hayes LLC.

Top cities in Massachusetts

All practitioners in Massachusetts

William R Haulbrook

Reg. 53002

Patent attorney

Choate, Hall & Stewart LLP

Boston, MA · 02110

617-248-4023

Lisa A Hawver

Reg. 77747

Patent agent

Foghorn Therapeutics Inc.

Cambridge, MA · 02139

585-230-7920

Leslie B. Hayden

Reg. 79854

Patent attorney

Lowell, MA · 01851

202-420-9637

Paul J Hayes

Reg. 28307

Patent attorney

Hayes, Messina, Gilman & Hayes LLC

Boston, MA · 02109

617-439-4200

Mark L Hayman

Reg. 51793

Patent attorney

Morgan, Lewis & Bockius LLP

Boston, MA · 02110-1726

617-951-8440

Bobby L. Hazelton· II

Reg. 78603

Patent attorney

Bobby Hazelton

Worcester, MA · 01602

508-453-1387

Ethan Y He

Reg. 82300

Patent agent

Mintz

Boston, MA · 02110

617-348-4447

Christopher J. Head

Reg. 82976

Patent agent

Withers Bergman LLP

Boston, MA · 02110

330-495-3466

Tatiana P. Headrick

Reg. 78828

Patent attorney

Foley Hoag, LLP

Boston, MA · 02210

617-832-1774

Alan M. Hebert

Reg. 71247

Patent agent

Beam Therapeutics

Cambridge, MA · 02138

857-626-6141

Leon F Hebert· Jr

Reg. 46764

Patent attorney

Shirley, MA · 01464

860-331-1186

Mark Joseph Hebert

Reg. 31766

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02110-1878

617-542-5070

Shayan Abraham Hedayat

Reg. 902799

Limited recognition

Northeastern University School of Law

Boston, MA · 02115

617-378-8631

Erik J Heels

Reg. 39218

Patent attorney

Clocktower Law LLC

Acton, MA · 01720-4508

978-263-0400

Ira V Heffan

Reg. 41059

Patent attorney

Sophos Inc.

Burlington, MA · 01803

781-494-5952

Peter C Heinemann

Reg. 36549

Patent agent

Humanics Company

Needham, MA · 02492

781-363-6155

McKendra M Heinke

Reg. 83407

Patent attorney

Caldwell Law

Boston, MA · 02116

802-848-6055

Julie L Heinrich

Reg. 48070

Patent attorney

McNeill PLLC

Cambridge, MA · 02140

412-744-3850

Jacqueline K. Heiss

Reg. 75913

Patent attorney

Paragon Therapeutics

Waltham, MA · 02453

161-786-81888

Frances Koch Heller

Reg. 35187

Patent attorney

Newton, MA · 02465

617-965-7778

Eva J. Helmerhorst

Reg. 80485

Patent agent

Saul Ewing Armstein & Lehr

Boston, MA · 02116

617-512-8205

Andrew D. Helwig

Reg. 83940

Patent agent

Framingham, MA · 01701

508-397-9073

William Beatty Heming

Reg. 29390

Patent attorney

Boston, MA · 02116

520-405-1897

Natalie M. Hendrick

Reg. 80181

Patent agent

Fenwick & West LLP

Boston, MA · 02110

617-245-5816

Diana G Hendricks

Reg. 74614

Patent agent

Greenberg Traurig, LLP

Boston, MA · 02110

617-310-5271

Donald M Hendricks

Reg. 40355

Patent agent

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8475

Gabriel L Hendricks

Reg. 77748

Patent agent

Woods Hole Oceanographic Institution

Woods Hole, MA · 02543

508-289-2234

Therese A Hendricks

Reg. 30389

Patent attorney

Polsinelli PC

Boston, MA · 02114

617-406-0435

Gilbert Hall Hennessey· III

Reg. 25759

Patent attorney

Wellesley, MA · 02482

781-718-5554

Christopher W Henry

Reg. 60907

Patent attorney

Newton, MA · 02466

917-364-5871

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.