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., Astellas, and DT Ward, PC.

Top cities in Massachusetts

All practitioners in Massachusetts

Ana C Ward

Reg. 43236

Patent attorney

Astellas

Westborough, MA · 01581

512-658-4153

Donna T Ward

Reg. 48271

Patent attorney

DT Ward, PC

Groton, MA · 01450

978-448-8720

Jean Renard Ward

Reg. 64922

Patent agent

Arlington, MA · 02476

781-648-8057

Andrew J Warner

Reg. 56049

Patent attorney

Ora, Inc.

Andover, MA · 01810

978-922-9909

Lisa M Warren

Reg. 41368

Patent attorney

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

Waltham, MA · 02451

781-622-5930

Jacob I Wasserman

Reg. 56929

Patent attorney

Pfizer

Cambridge, MA · 02140

617-665-6823

Stephen P. Waters

Reg. 83216

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-8335

Robin A. Weatherhead

Reg. 60141

Patent attorney

Ventus Therapeutics

Waltham, MA · 02453

617-852-4794

Don L Webber

Reg. 34275

Patent attorney

Don Webber IP

Duxbury, MA · 02332

781-424-9294

Brian W. Weber

Reg. 58628

Patent attorney

Pegasystems Inc.

Cambridge, MA · 02142

617-866-6919

Jeffrey D. Weber

Reg. 64828

Patent attorney

Sanofi

Cambridge, MA · 02142-1512

617-685-6431

Samantha M Webster

Reg. 84469

Patent agent

Boston, MA · 02210

617-570-8705

Anne E Weeks

Reg. 77065

Patent attorney

Wolf Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8031

Marc M Wefers

Reg. 56842

Patent agent

Fish & Richardson P.C.

Boston, MA · 02210-1878

617-542-5070

Daniel T Wehner

Reg. 63480

Patent attorney

Wolf, Greenfield and Sacks, P.C.

Boston, MA · 02210

617-646-8299

Paul A Weinand

Reg. 77758

Patent attorney

Mintz Levin Cohn Ferris Glovsky Popeo PC

Boston, MA · 02111

617-542-6000

Daniel B Weinger

Reg. 68836

Patent attorney

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

Boston, MA · 02111

617-348-1629

Joshua S. Weinger

Reg. 73198

Patent attorney

Goodwin Proctor, LLP

Boston, MA · 02210

617-501-1000

Glen D Weinstein

Reg. 43981

Patent attorney

iRobot Corporation

Bedford, MA · 01730

781-430-3000

Lee Davis Weinstein

Reg. 56261

Patent agent

Milton, MA · 02186

781-643-3281

M Aaron Weinstein

Reg. 63124

Patent attorney

Milton, MA · 02186

617-698-9278

Jacob G Weintraub

Reg. 56469

Patent agent

AstzaZeneca

Waltham, MA · 02451

781-839-4182

Keiko Weir

Reg. 82511

Patent agent

Novo Nordisk

Lexington, MA · 02421

857-275-1486

William C S Weir

Reg. 55718

Patent agent

Worcester, MA · 01602

508-831-5122

Steven J Weissburg

Reg. 31581

Patent attorney

Cambridge, MA · 02140

617-864-2670

James K Weixel

Reg. 44399

Patent attorney

Accenture

Boston, MA · 02199

617-488-5056

John L Welch

Reg. 28129

Patent attorney

Wolf Greenfield & Sacks, P.C.

Boston, MA · 02210

617-646-8000

Kathryn A. Welk

Reg. 72764

Patent attorney

Walker & Di Marco, P.C.

Malden, MA · 02148

781-322-3700

Timothy A. Welk

Reg. 69708

Patent attorney

Danielson Legal LLC

Cambridge, MA · 02138

857-400-6501

Brian K Wells

Reg. 60535

Patent attorney

Wells P.C.

Boston, MA · 02109

617-830-5050

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.