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 Goodwin Procter LLP, K&L Gates, and Finnegan, Henderson, Farabow, Garrett & Dunner, LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

Xinyi Zhang

Reg. 800147

Limited recognition

K&L Gates

Boston, MA · 02114

617-951-9109

Xirui Zhang

Reg. 78809

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Boston, MA · 02210-2001

617-646-1626

Yan Zhang

Reg. 68683

Patent agent

Lexington, MA · 02421

978-408-0430

Yin Philip Zhang

Reg. 44372

Patent attorney

Milstein Zhang & Wu LLC

Newton, MA · 02465

617-529-8369

Ying Zhang

Reg. 83217

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-1000

Yuying Zhang

Reg. 80522

Patent agent

Boston, MA · 02199

404-375-8394

Hanchao Zhao

Reg. 77958

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02210

617-368-2182

Lingling Zhao

Reg. 80174

Patent agent

McCarter & English LLP

Boston, MA · 02110

518-867-2837

Yanhua Zhao

Reg. 83362

Patent agent

Cambridge, MA · 02139

409-443-1461

Yong Zhao

Reg. 66409

Patent agent

Nuance

Burlington, MA · 01803

781-565-4580

Erica J. Zheng

Reg. 82274

Patent agent

Boston, MA · 02111

617-428-7029

Jennie O. Zheng

Reg. 78151

Patent agent

Foley & Lardner

Boston, MA · 02199-7610

617-226-3135

Anna S Zhou

Reg. 81432

Patent attorney

Goodwin Procter LLP

Boston, MA · 02210

617-570-1904

Rong Zhou

Reg. 80759

Patent agent

Boston Children's Hospital

Boston, MA · 02115

617-919-3019

Weiguo Zhou

Reg. 67410

Patent attorney

McCarter & English, LLP

Boston, MA · 02110

617-449-6521

Heng Zhu

Reg. 72596

Patent agent

DT Ward, PC

Groton, MA · 01450

978-448-8720

Meicheng Zhu

Reg. 66446

Patent agent

Meichael law

Leominster, MA · 01453

978-833-4836

Xuedong Zhu

Reg. 82139

Patent agent

Boston, MA · 02110

857-333-6217

Adil R. Zhugralin

Reg. 77292

Patent attorney

Novartis Institutes for Biomedical Research

Cambridge, MA · 02139

774-397-1606

Stephanie M Zierten

Reg. 52397

Patent attorney

Federal Reserve Bank of Boston

Boston, MA · 02110

617-973-3529

Ivan D Zitkovsky

Reg. 37482

Patent attorney

Lexington, MA · 02421

781-274-6690

Frederic P. Zotos

Reg. 37974

Patent attorney

Cohasset, MA · 02025

781-836-4295

Veronika I Zsiros

Reg. 74325

Patent agent

Arlington, MA · 02475

312-622-5758

Joseph C Zucchero

Reg. 55762

Patent attorney

Elmore Patent Law Group

Westford, MA · 01886

978-251-3509

Kenneth P Zwicker

Reg. 43310

Patent attorney

Boston University, OTD

Boston, MA · 02215

617-353-8996

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.