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 Wilson Sonsini Goodrich & Rosati, Sanofi, and Clark & Elbing LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

Jan N Tittel

Reg. 52290

Patent attorney

Clark & Elbing LLP

Boston, MA · 02111

617-428-7050

Judith Lynn Toffenetti

Reg. 39048

Patent attorney

Kacvinsky Daisak Bluni PLLC

Marblehead, MA · 01945

919-636-4767 X155

Valerie M. Tomic

Reg. 78648

Patent agent

Waltham, MA · 02451

339-223-3405

Jonathan K. Tong

Reg. 77374

Patent agent

Smith Baluch LLP

Boston, MA · 02116

703-728-3423

Jason M. Toomey

Reg. 61174

Patent attorney

Intellestate Law, LLC

Whitinsville, MA · 01588

774-280-8639

Sarah Stahl Toomey

Reg. 55682

Patent attorney

Sudbury, MA · 01776

703-489-9095

Anthony C Topper

Reg. 56458

Patent attorney

Cesari & McKenna, LLP

BOSTON, MA · 02109

617-951-2500

Kevin M Tormey

Reg. 41351

Patent attorney

Choate Hall & Stewart

Boston, MA · 02109

617-248-5000

Pamela A. Torpey

Reg. 45736

Patent attorney

Genzyme

Framingham, MA · 01701

508--27-1-0683

Blake L. Torrance

Reg. 81391

Patent agent

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02108

617-598-7800

Robert J Tosti

Reg. 35393

Patent attorney

Robert J. Tosti, Attorney at Law

Ashland, MA · 01721

508-523-0502

Michael A Toto

Reg. 68035

Patent agent

Feeding Hills, MA · 01030

413-374-6818

Jennifer Dianne Tousignant

Reg. 54498

Patent agent

Waltham, MA · 02451

781-257-2330

Alan C Townsley

Reg. 64740

Patent attorney

Sanofi

Cambridge, MA · 02141

240-961-0738

Jon C Trachtenberg

Reg. 45455

Patent attorney

St. Jude Medical

Westford, MA · 01886

978-577-3417

Matthew A Trammell

Reg. 63922

Patent agent

Vertex Pharmaceuticals

Boston, MA · 02210

857-208-1909

Edmond P Tremblay· Jr

Reg. 43204

Patent agent

Edmond P. Tremblay and Assoc. PC

Swansea, MA · 02777

508-672-5200

Jedediah T. Tressler

Reg. 78791

Patent agent

Pepperell, MA · 01463

979-574-8893

Maria A Trevisan

Reg. 48207

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8000

Nicholas P Triano· III

Reg. 36397

Patent attorney

ROME Therapeutics

Boston, MA · 02215

978-681-6411

Brian C Trinque

Reg. 56593

Patent agent

Lathrop & Gage LLP

Boston, MA · 02109

857-300-4000

Sudeshna Trivedi

Reg. 75472

Patent agent

Allston, MA · 02134

302-983-9619

Leda I Trivinos-Lagos

Reg. 50635

Patent attorney

Flagship Ventures

Cambridge, MA · 02142

617-218-1508

Kyle J Trout

Reg. 68791

Patent attorney

Philips Intellectual Property & Standards

Cambridge, MA · 02141

617-386-6092

Eric L Truebenbach

Reg. 66797

Patent agent

Sudbury, MA · 01776

978-443-1805

Johnson T. Truong

Reg. 78363

Patent agent

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02109

617-598-7809

Yuan-Kai Tsao

Reg. 34053

Patent attorney

Cesari and McKenna, LLP

Boston, MA · 02109

617-951-2500

Janet M Tse

Reg. 69953

Patent attorney

Sanofi

Cambridge, MA · 02141

617-564-6571

LeinWeih A. Tseng

Reg. 82966

Patent attorney

Troutman Pepper Locke LLP

Boston, MA · 02199

617-204-5122

Hironori Tsukamoto

Reg. 60830

Patent agent

Watertown, MA · 02472

774-264-1717

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.