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., Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, and Schwegman, Lundberg & Woessner, P.A..

Top cities in Massachusetts

All practitioners in Massachusetts

Ao Li

Reg. 78269

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Boston, MA · 02210

617-646-1684

Dan Li

Reg. 75610

Patent attorney

Schwegman, Lundberg & Woessner, P.A.

Lexington, MA · 02420

612-373-6945

Guanshi Li

Reg. 79595

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Boston, MA · 02210

617-646-1653

Haoju Li

Reg. 83246

Patent agent

Boston, MA · 02116

857-758-2704

Joshua S. Li

Reg. 82780

Patent agent

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

Boston, MA · 02111

857-300-8233

Kimberly Q Li

Reg. 74713

Patent attorney

Latham & Watkins LLP

Boston, MA · 02116

617-880-4529

Lin Li

Reg. 74442

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8502

Xiaodong Li

Reg. 68588

Patent agent

Choate, Hall & Stewart LLP

Boston, MA · 02110

617-248-4042

Brian J Libby

Reg. 56865

Patent attorney

Hingham, MA · 02043

781-635-7842

Ilya I Libenzon

Reg. 66616

Patent attorney

Mr. Ilya Libenzon

Newton, MA · 02464

617-244-4318

Hilary J. Libka

Reg. 71169

Patent attorney

Dana-Farber Cancer Institute, Inc.

Boston, MA · 02215-5450

617-632-5936

Faustino A Lichauco

Reg. 41942

Patent attorney

Occhiuti & Rohlicek

Boston, MA · 02109

617-500-2533

Robert L. Lichter

Reg. 69435

Patent attorney

Lando & Anastasi, LLP

Cambridge, MA · 02142

617-395-7088

Forrester J. Liddle

Reg. 59486

Patent attorney

Novo Nordisk

Lexington, MA · 02421

617-899-3998

Claire A. L. Lidston

Reg. 81205

Patent agent

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8426

Booyong S Lim

Reg. 61589

Patent attorney

Kala Pharmaceuticals, Inc.

Watertown, MA · 02472

781-916-9112

Chun Jen Jonathan Lin

Reg. 80565

Patent agent

Foley & Lardner LLP

Boston, MA · 02199-7610

617-342-4000

Clark Y. Lin

Reg. 67024

Patent attorney

Wilson Sonsini Goodrich and Rosati

Boston, MA · 02109

617-598-7823

Erica S C Lin

Reg. 71661

Patent agent

Cambridge, MA · 02139

617-910-8363

Jacki Lin

Reg. 75996

Patent attorney

Bristol Myers Squibb

Cambridge, MA · 02141

617-494-7100

Jiang Lin

Reg. 51065

Patent attorney

Beigene USA, Inc,

Cambridge, MA · 02142

908-342-5878

Jonathan Zheng Lin

Reg. 67783

Patent attorney

Sonde Health, Inc.

Boston, MA · 02116

617-945-0010

Peng Lin

Reg. 74999

Patent attorney

Fish & Richardson, PC

Boston, MA · 02210

617-368-2124

Samuel S Lin

Reg. 66960

Patent agent

Lexington, MA · 02421

202-355-5440

Yi Chia Lin

Reg. 67631

Patent attorney

OLYMPUS CORPORATION OF THE AMERICAS

Westborough, MA · 01581

508-244-2814

Ying-Yu Lin

Reg. 83702

Patent agent

Belmont, MA · 02478

443-319-3155

William R. Lindemann

Reg. 81128

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8535

Rhianna L. Lindop

Reg. 76615

Patent attorney

Hogan Lovells, US LLP

Boston, MA · 02110

617-702-7741

Ernest V Linek

Reg. 29822

Patent attorney

Banner & Witcoff, Ltd.

Boston, MA · 02109-1701

617-720-9600

Yutian Ling

Reg. 64400

Patent attorney

Osram Sylvania Inc.

Wilmington, MA · 01887

978-570-3244

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.