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 Wolf, Greenfield & Sacks, P.C., Morrison & Foerster, and Fenwick & West LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

Mark D McBriar

Reg. 64178

Patent attorney

Morrison & Foerster

Boston, MA · 02116

617-648-4782

Ian W McCahill

Reg. 73370

Patent agent

Amherst, MA · 01002

774-273-0775

Christine Elizabeth McCain

Reg. 78279

Patent attorney

Fenwick & West LLP

Boston, MA · 02110

617-245-5819

Kathleen M. McCarte

Reg. 83017

Patent attorney

Chatham, MA · 02633

859-489-3617

Alison L McCarthy

Reg. 51998

Patent attorney

Troutman Pepper Locke LLP

Boston, MA · 02110-2736

617-204-5100

Regina C. McCarthy

Reg. 71349

Patent attorney

Lando & Anastasi

Cambridge, MA · 02142

617-395-7080

William R McCarthy· III

Reg. 55788

Patent agent

ThermoFisher Scientific

Tewksbury, MA · 01876

781-287-4960

Catherine M McCarty

Reg. 54301

Patent attorney

Goodwin Procter

Boston, MA · 02210

617-570-1129

R Brian McCaslin

Reg. 48571

Patent attorney

Sanofi

Cambridge, MA · 02142

617-685-5687

William R McClellan

Reg. 29409

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8203

Gabriel J McCool

Reg. 58423

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8000

Alanna M McCormack

Reg. 78066

Patent attorney

Commonwealth Law Collaborative, LLC

Shrewsbury, MA · 01545

443-538-8267

Christine Catherine McCormack

Reg. 61331

Patent agent

Takeda Pharmaceuticals

Cambridge, MA · 02139

617-679-7181

Ian P. McCulloch

Reg. 78616

Patent agent

Relay Therapeutics

Cambridge, MA · 02139

650-248-1917

Peter D McDermott

Reg. 29411

Patent attorney

Law Office of Peter D. McDermott

Hopkinton, MA · 01748

508-826-4488

J Cooper McDonald

Reg. 52011

Patent attorney

Clark+Elbing LLP

Boston, MA · 02110

617-428-7025

Michael J McDonald

Reg. 62581

Patent attorney

Kelonia Therapeutics, Inc.

Boston, MA · 02125

617-765-7653

Christina V. McDonough

Reg. 64612

Patent attorney

Fish & Richardson, PC

Boston, MA · 02110-1878

617-542-5070

Timothy R. McFadden

Reg. 78815

Patent agent

Fish & Richardson PC

Boston, MA · 02110-1878

617-542-5070

J Daniel McGeeney

Reg. 65725

Patent agent

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

Waltham, MA · 02451

781-622-5930

Kevin B McGoff

Reg. 53297

Patent attorney

Brooks Automation

Chelmsford, MA · 01824

978-262-2400

John P McGonagle

Reg. 30196

Patent attorney

Law Offices Of John P McGonagle

Rockland, MA · 02370

781-871-4000

Kevin J. McGough

Reg. 31279

Patent attorney

BioNTech US Inc.

Cambridge, MA · 02139

617-337-4701

Daniel J McGrath

Reg. 74352

Patent attorney

Burns & Levinson LLP

Boston, MA · 02110

617-345-3000

Asher S. McGuffin

Reg. 81206

Patent attorney

Quinn, Emanuel, Urquhart, & Sullivan LLP

Boston, MA · 02199

617-712-7216

Marc McGuigan

Reg. 74812

Patent agent

Analog Devices

Wilmington, MA · 01887

617-733-9158

Lindsay Gage McGuinness

Reg. 38549

Patent attorney

USPTO

Concord, MA · 01742

617-281-9700

Michael R McGurk

Reg. 32045

Patent attorney

McGurk Group LLC

Boston, MA · 02110

617-806-6380

Michael D McHugh

Reg. 80500

Patent attorney

Intergalactic Therapeutics Inc.

Boston, MA · 02135

717-817-2113

William J McKeague

Reg. 58678

Patent attorney

Skyhawk Therapeutics, Inc.

Waltham, MA · 02451

617-858-0041

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.