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 Mascoma Corporation, IP Supra, PLLC, and Finnegan Henderson.

Top cities in Massachusetts

All practitioners in Massachusetts

Timothy P Linkkila

Reg. 40702

Patent attorney

Mascoma Corporation

Boston, MA · 02135

617-234-0099

Constantine Mikhailovich Linnik

Reg. 56309

Patent attorney

IP Supra, PLLC

Cambridge, MA · 02138

617-480-0939

Steven E Lipman

Reg. 30011

Patent attorney

Boston, MA · 02116

703-585-9303

Alissa K. Lipton

Reg. 71505

Patent attorney

Finnegan Henderson

Boston, MA · 02210

617-646-1600

Jacob B. Lissoos

Reg. 78966

Patent agent

Alnylam Pharmaceuticals, Inc.

Cambridge, MA · 02142

847-530-7637

Natalie A. Lissy

Reg. 59651

Patent attorney

Ampersand Biomedicines

Boston, MA · 02125

610-724-5493

Rebecca W. Listfield

Reg. 71311

Patent agent

Innovation

Cambridge, MA · 02142

857-307-2484

Ainslie E F Little

Reg. 65008

Patent agent

BlueRock Therapeutics

Cambridge, MA · 02142

617-276-6879

Frank D Liu

Reg. 64682

Patent attorney

Pepper Hamilton LLP

Boston, MA · 02110

617-204-5100

Helen S. Liu

Reg. 55389

Patent attorney

Liu Law Office

Bedford, MA · 01730-1848

781-413-4076

Jenny Liu

Reg. 84549

Patent agent

Watertown, MA · 02472

857-222-1824

Le Liu

Reg. 84501

Patent agent

Medford, MA · 02155

431-210-1668

Mengran Liu

Reg. 80682

Patent agent

Cooley LLP

Boston, MA · 02116-3736

650-843-5114

Shiwei Liu

Reg. 84214

Patent agent

Jones Day LLP

Boston, MA · 02110

617-449-6817

Tianxin Liu

Reg. 84345

Patent agent

Boston Children's Hospital

Boston, MA · 02115

979-676-0293

Yang Liu

Reg. 72510

Patent agent

West Roxbury, MA · 02132

781-420-3193

Yi Liu

Reg. 55393

Patent attorney

Harbour BioMed US Inc.

Natick, MA · 01760

857-417-0869

Yinan Liu

Reg. 72482

Patent agent

FINNEGAN

BOSTON, MA · 02210-2001

857-272-6038

Jessica A. Lloyd

Reg. 79949

Patent agent

Medford, MA · 02155

860-912-8875

Theresa A Lober

Reg. 35253

Patent agent

T.A. Lober Patent Services

Concord, MA · 01742

978-369-2181

Amy K. LoBue

Reg. 81541

Patent agent

Mintz

Boston, MA · 02111

812-746-9027

Vincent P Loccisano

Reg. 55397

Patent attorney

Wellesley, MA · 02481

671-866-8850

Helen C Lockhart

Reg. 39248

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8249

Erik W Lodding

Reg. 55398

Patent attorney

Natick, MA · 01760

801-913-7968

Ian J. S. Lodovice

Reg. 59749

Patent attorney

Biogen Inc.

Cambridge, MA · 02142

617-679-6480

Jennifer Lynn Loebach

Reg. 57977

Patent attorney

Blueprint Medicines

Cambridge, MA · 02139

617-223-7437

Rosemary A Loer

Reg. 84463

Patent agent

Woods Hole, MA · 02543

508-317-9959

Carol A Loeschorn

Reg. 35590

Patent attorney

Biogen Idec Inc.

Cambridge, MA · 02142

781-464-2044

Matthew B Loftus

Reg. 51963

Patent attorney

Milton, MA · 02186

617-696-8257

Richard J Long

Reg. 48252

Patent attorney

Law Office of Richard J. Long

Waltham, MA · 02451-1255

781-577-6626

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.