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 Sarepta Therapeutics, Inc., Wilson Sonsini Goodrich and Rosati, P.C., and Barnes & Thornburg LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

John X Haberman

Reg. 55236

Patent attorney

Sarepta Therapeutics, Inc.

Cambridge, MA · 02142

617-274-4000

David Michael Habib

Reg. 79201

Patent attorney

Wilson Sonsini Goodrich and Rosati, P.C.

Boston, MA · 02210

617-378-2379

Austin C. Hachey

Reg. 83224

Patent agent

New Salem, MA · 01355

413-824-0237

Brent Allen Hackett

Reg. 81760

Patent agent

Sarepta Therapeutics, Inc.

Cambridge, MA · 02142

617-274-4000

Elizabeth H. Hadley

Reg. 74277

Patent agent

Barnes & Thornburg LLP

Boston, MA · 02210

617-316-5319

Thomas E Hagar

Reg. 42617

Patent attorney

Wayland, MA · 01778

508-358-2063

Charles M Haggerty

Reg. 56769

Patent attorney

Westborough, MA · 01581

508-904-4384

Robert W Hagopian

Reg. 26079

Patent attorney

Medica Corporation

Bedford, MA · 01730

781-275-4892

George S Haight

Reg. 54146

Patent attorney

Daly Crowley Mofford & Durkee LLP

Quincy, MA · 02090

781-989-5146

Norman F Hainer· Jr

Reg. 55239

Patent attorney

Smith & Nephew, Inc.

Andover, MA · 01801

978-749-1311

Corrina L Hale

Reg. 62323

Patent attorney

Chicopee, MA · 01020

413-532-1382

Christopher Keating Haley

Reg. 77733

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-1000

Donald N Halgren

Reg. 27056

Patent attorney

Manchester, MA · 01944

978-526-8000

Melanie Halim

Reg. 84717

Patent agent

Boston, MA · 02110

857-253-1506

James C Hall

Reg. 48730

Patent attorney

Jim Hall Law

Boston, MA · 02108

857-263-8642

Justin T. Hall

Reg. 84532

Patent agent

Cambridge, MA · 02138

856-313-8496

Ibrahim M Hallaj

Reg. 51768

Patent attorney

Intrinsic Law Corp.

Waltham, MA · 02451

617-420-0078

David P Halstead

Reg. 44735

Patent attorney

Foley Hoag LLP

Boston, MA · 02210

617-832-1754

Ayaz Hameed

Reg. 57943

Patent agent

Pegasystems Inc.

Cambridge, MA · 02142

617-866-6472

Isaac N. Hamilton

Reg. 61617

Patent agent

Marblehead, MA · 09145

202-230-6290

John A Hamilton· III

Reg. 48946

Patent attorney

Law Office of John A. Hamilton

Hopkinton, MA · 01748

781-264-1914

Megan E. Hamilton

Reg. 84718

Patent agent

Jamacia Plain, MA · 02130

913-370-0157

Lesley A Hamlin

Reg. 41054

Patent attorney

Citrix Systems Inc.

Bedford, MA · 01730

781-301-9733

Michael R Hamlin

Reg. 54149

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02210-1878

617-542-5070

Jonathan Kirk Hamm

Reg. 59608

Patent agent

Lathrop & Gage LLP

Boston, MA · 02109

857-300-4027

Emily L Hamman

Reg. 80817

Patent agent

Morrison & Foerster

Boston, MA · 02116

617-648-4778

Michael K Hammer

Reg. 64846

Patent attorney

West Roxbury, MA · 02132

248-890-0516

Philip J Hamzik

Reg. 75481

Patent attorney

Wolf Greenfield

Boston, MA · 02210

617-646-8300

Christopher J Han

Reg. 70069

Patent attorney

Ropes & Gray LLP

Boston, MA · 02199

617-951-7345

Oliver S. Han

Reg. 72864

Patent attorney

Caldwell Intellectual Property Law

Boston, MA · 02116

857-758-5747

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.