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 Hamilton, Brook, Smith & Reynolds, P.C., Concert Pharmaceuticals, Inc., and Andover-IP-Law.

Top cities in Massachusetts

All practitioners in Massachusetts

Ian R Silverman

Reg. 37443

Patent attorney

Concert Pharmaceuticals, Inc.

Lexington, MA · 02421

781-674-5220

David Silverstein

Reg. 26336

Patent attorney

Andover-IP-Law

Andover, MA · 01810

978-475-3870

Leah B. Silverstein

Reg. 73058

Patent agent

Boston, MA · 02114

805-886-0898

Rebecca L Simmons

Reg. 69258

Patent agent

McNeill PLLC

Cambridge, MA · 02140

339-707-7548

David A Simons

Reg. 45888

Patent attorney

K&L Gates LLP

Boston, MA · 02111-2950

617-261-3100

Everett F Simons

Reg. 53595

Patent attorney

Taunton, MA · 02780

508-463-8533

Karen A Sinclair

Reg. 58343

Patent attorney

Harvard University / Wyss Institute

Boston, MA · 02115

617-432-8258

Michael S Singer

Reg. 72873

Patent agent

Topokine Therapeutics Inc.

Newton, MA · 02459

617-388-2132

Amit K Singh

Reg. 54451

Patent agent

North Andover, MA · 01845

978-688-1278

Niharika Singh

Reg. 73579

Patent agent

Cambridge, MA · 02140

412-867-9561

Tracy M Sioussat

Reg. 50609

Patent agent

Millennium Pharmaceuticals

Cambridge, MA · 02139

617-374-7679

Bradford C Sippy

Reg. 52227

Patent agent

Concord, MA · 01742

617-485-0250

Nicholas J Sisti

Reg. 54453

Patent attorney

EMD Serono

Billerica, MA · 01821

978-435-1460

Andrew P Siuta

Reg. 78990

Patent attorney

Analog Devices

Wilmington, MA · 01887

781-935-5565

Jason A Skinder

Reg. 47094

Patent attorney

Delphi Technologies

Troy, MA · 48098

248-813-1492

Robert A Skrivanek

Reg. 41316

Patent attorney

Lando and Anastasi LLP

Cambridge, MA · 02142

617-395-7000

Charles J. Slade

Reg. 66082

Patent attorney

Cambridge, MA · 02140

857-222-3851

Danya J. Smart

Reg. 81735

Patent agent

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02108

805-807-1425

Janet L Smart

Reg. 39374

Patent attorney

Organogenesis Inc.

Canton, MA · 02021

603-867-0312

Beth Louise Smiley

Reg. 73255

Patent attorney

Law Offices of Beth L. Smiley

Wayland, MA · 01778

508-358-4712

Brian C Smith

Reg. 68283

Patent agent

Spectros Associates

Boston, MA · 02118

508-579-6514

Catherine J Smith

Reg. 53607

Patent attorney

ASCEND LEARNING , LLC

BURLINGTON, MA · 01803

800-832-0034

Craig R Smith

Reg. 45113

Patent attorney

Lando & Anastasi LLP

Cambridge, MA · 02142

617-395-7000

Daniel N Smith

Reg. 56445

Patent attorney

New England Patent & Trademark

Wakefield, MA · 01880

978-882-0160

DeAnn F Smith

Reg. 36683

Patent attorney

Foley Hoag, LLP

Boston, MA · 02210

617-832-1000

Frank A Smith

Reg. 39375

Patent attorney

Dyne Therapeutics

Waltham, MA · 02451

201-602-6062

Frank J. Smith

Reg. 64093

Patent attorney

Law Office of Frank J Smith ESQ LLC

Methuen, MA · 01844

978-397-0877

James Michael Smith

Reg. 28043

Patent attorney

Hamilton, Brook, Smith & Reynolds, P.C.

Lincoln, MA · 01773

978-341-0036

Joseph D. Smith

Reg. 79247

Patent agent

Hamilton, Brook, Smith & Reynolds, P.C.

Concord, MA · 01742

978-341-0036 X3416

Kelly M. Smith

Reg. 83500

Patent agent

GTC Law Group PC & Affiliates

Westwood, MA · 02090

858-337-4568

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.