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 Foley Hoag LLP, Fish & Richardson P.C., and Goodwin Procter LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

Sean D Detweiler

Reg. 42482

Patent attorney

Morse, Barnes-Brown & Pendleton, P.C.

Waltham, MA · 02451

781-622-5930

Stephen B Deutsch

Reg. 46663

Patent attorney

Foley Hoag LLP

Boston, MA · 02210

617-832-1118

William D DeVaul

Reg. 42483

Patent attorney

Evelo Therapeutics, Inc.

Cambridge, MA · 02142

Samantha N. Devenport

Reg. 80234

Patent agent

Foley Hoag LLP

Boston, MA · 02210

617-832-1194

Peter John Devlin

Reg. 31753

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02210-1878

617-542-5070

Theresa A Devlin

Reg. 45361

Patent attorney

Biogen Idec Inc.

Cambridge, MA · 02142

781-464-3213

Leah S Dewar

Reg. 65639

Patent attorney

Onello & Mello LLP

Burlington, MA · 01803

617-994-4900

William G Dewar

Reg. 65640

Patent attorney

New Balance Athletics, Inc.

Boston, MA · 02135

978-725-2978

Tamaria G. Dewdney

Reg. 82437

Patent attorney

Proskauer Rose LLP

Boston, MA · 02110

617-526-9662

Janice K. DeYoung

Reg. 50429

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02210

617-956-5985

Bal Mukund Dhar

Reg. 81741

Patent agent

Lincoln, MA · 01773

617-817-7601

Gauri M Dhavan

Reg. 72667

Patent attorney

Zoll Medical Corporation

Chelmsford, MA · 01824

978-421-9796

Jeanne M Di Giorgio

Reg. 41710

Patent attorney

Lahive & Cockfield, LLP

Boston, MA · 02109

617-227-7400

Manal A Dia

Reg. 72066

Patent attorney

MEDFORD, MA · 02155

909-206-2625

Allison B. Dianis

Reg. 65605

Patent agent

Andover, MA · 01810

845-521-1948

Peter M DiChiara

Reg. 38005

Patent attorney

Wilmer Cutler Pickering Hale and Dorr LLP

Boston, MA · 02109

617-526-6466

Isabella A Diehl

Reg. 82709

Patent attorney

Brookline, MA · 02445

631-745-2207

R Anthony Diehl

Reg. 38432

Patent attorney

Insulet Corporation

Bedford, MA · 01730

781-457-4717

Michael A Diener

Reg. 37122

Patent attorney

Needham, MA · 02492

617-526-6454

Cuong V Diep

Reg. 63653

Patent attorney

Quincy, MA · 02170

617-471-7897

Terese Dillingham

Reg. 65070

Patent attorney

The Broad Institute, Inc.

Cambridge, MA · 02142

617-714-8183

Diondra A. Dilworth

Reg. 84021

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-1314

Thomas M DiMauro

Reg. 35490

Patent attorney

Southboro, MA · 01772

508-624-9627

Jason M DiMedio

Reg. 78722

Patent agent

HoustonHogle LLP

Billerica, MA · 01821

617-895-8170

Vincenzo DiMonaco

Reg. 79716

Patent agent

Boston, MA · 02116

203-752-8188

Taha Mohammed Din

Reg. 903218

Limited recognition

Boston College Law School

Newton, MA · 02459

630-440-2025

Kellie K DiNapoli

Reg. 61455

Patent attorney

Genzyme Corporation

Framingham, MA · 01702

508-271-0688

Dian Ding

Reg. 84511

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

402-281-6514

Xiaoyuan Ding

Reg. 75354

Patent agent

Cesari and McKenna LLP

Boston, MA · 02109

617-951-3055

Jason R Dinges

Reg. 55114

Patent attorney

McCarthy Legal Services, LLC

Newton Centre, MA · 02459

617-244-2800

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.