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 Lando and Anastasi LLP, Saul Ewing Arnstein & Lehr LLP, and Olympus Corporation.

Top cities in Massachusetts

All practitioners in Massachusetts

Kyra R. Lagoy

Reg. 80113

Patent agent

Ludlow, MA · 01056

413-455-4053

Vincent Lai

Reg. 63816

Patent attorney

Olympus Corporation

Westborough, MA · 01581

617-999-7400

Kate Tierney Lakis

Reg. 903219

Limited recognition

Boston College Law School

Newton, MA · 02459

678-216-2526

James Blaine Lampert

Reg. 24564

Patent attorney

James B Lampert

Duxbury, MA · 02332

781-934-0389

Ann Lamport Hammitte

Reg. 34858

Patent attorney

Lando and Anastasi LLP

Cambridge, MA · 02142

617-395-7000

J. Justin Lancaster

Reg. 43737

Patent attorney

J. Justin Lancaster, Law Offices

Winchester, MA · 01890

617-688-2785

Peter C Lando

Reg. 34654

Patent attorney

Lando and Anastasi LLP

Cambridge, MA · 02142

617-395-7000

Steven M Landolfi· Jr

Reg. 69779

Patent attorney

Acushnet Company

Fairhaven, MA · 02719

571-214-6865

Brian R Landry

Reg. 62074

Patent attorney

Saul Ewing Arnstein & Lehr LLP

Boston, MA · 02116

617-912-0969

Kevin P Landry

Reg. 35926

Patent attorney

Law Offices Kevin P. Landry, P.C.

Falmouth, MA · 02540

508-457-9500

Inna Shtivelband Landsman

Reg. 44337

Patent attorney

Litrtleton, MA · 01460

617-620-9434

Denise C Lane

Reg. 42780

Patent attorney

Olympus Corp

Westborough, MA · 01581

508-804-2600

Dan Harry Lang

Reg. 38531

Patent attorney

Brookline, MA · 02445

650-224-4112

Hilary D Lang

Reg. 51917

Patent attorney

Foley Hoag LLP

Boston, MA · 02210

617-832-1000

John N Langa

Reg. 80794

Patent attorney

Ropes & Gray LLP

Boston, MA · 02199

617-951-7493

Kristoffer W. Lange

Reg. 68084

Patent attorney

Daly, Crowley, Mofford & Durkee, LLP

Quincy, MA · 02169

781-989-5162

John D Lanza

Reg. 40060

Patent attorney

Foley & Lardner LLP

Boston, MA · 02199-7610

617-342-4084

Mark G Lappin

Reg. 26618

Patent attorney

Weston, MA · 02493-0002

617-504-1020

Ilya R Lapshin

Reg. 54251

Patent attorney

IRL Legal Services, LLC

Brookline, MA · 02446-3914

617-549-1075

Ayla A Lari

Reg. 43739

Patent attorney

IBM Corporation

Cambridge, MA · 02142

617-693-0204

Angelyn Larkin

Reg. 74375

Patent agent

Lando & Anastasi, LLP

Cambridge, MA · 02142

617-395-7066

Christie L. Larochelle

Reg. 75020

Patent attorney

Goodwin Proctor LLP

Boston, MA · 02210

617-570-1683

Charles D Larsen

Reg. 48533

Patent attorney

McDermott Will & Schulte LLP

Boston, MA · 02116-5201

617-535-4136

Kristina M. Larson

Reg. 84106

Patent agent

Stoneham, MA · 02180-0029

303-667-5920

Elizabeth Lassen

Reg. 31845

Patent attorney

Westborough, MA · 01581

508-561-1799

Wing-Yeung Lau

Reg. 76221

Patent agent

Alexion Pharmaceuticals, Inc.

Boston, MA · 02210

857-338-8374

Madeleine C. Laupheimer

Reg. 71938

Patent attorney

Wilmer Cutler Pickering Hale and Dorr LLP

Boston, MA · 02109

617-526-6107

Anthony A Laurentano

Reg. 38220

Patent attorney

Nelson Mullins Riley & Scarborough, LLP

Boston, MA · 02109

617-202-4024

Peter C Lauro

Reg. 32360

Patent attorney

Saul Ewing Arnstein & Lehr LLP

Boston, MA · 02116

617-912-0951

Ellen D Law

Reg. 39741

Patent attorney

Broad Institute, Non-profit Corporation

Cambridge, MA · 02142

617-714-8186

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.