Massachusetts

Patent attorneys in Massachusetts

Massachusetts hosts 2,869 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 Barnes & Thornburg LLP, Wolf, Greenfield & Sacks PC, and Greenberg Traurig, LLP.

Top cities in Massachusetts

All practitioners in Massachusetts

Sean M. Phipps

Reg. 74337

Patent attorney

Barnes & Thornburg LLP

Boston, MA · 02210

617-316-5326

Jason A Piader

Reg. 76959

Patent attorney

Webster, MA · 01570

860-418-9581

Zachary P Piccolomini

Reg. 63390

Patent attorney

Wolf, Greenfield & Sacks PC

Boston, MA · 02210

617-646-8579

Richard Joseph Pickreign· Jr

Reg. 51160

Patent attorney

Harvard, MA · 01451

978-456-1200

Nelson Scott Pierce

Reg. 34900

Patent attorney

Harvard, MA · 01451

978-456-1225

Samantha L. Pilicer

Reg. 81730

Patent agent

Greenberg Traurig, LLP

Boston, MA · 02110

617-310-5213

John E Pillion

Reg. 52122

Patent agent

Entegris, Inc.

Billerica, MA · 01821

978-436-6694

Michele P Pilotte

Reg. 39333

Patent attorney

Public Consulting Group. Inc.

Boston, MA · 02109

617-426-2026

Moshe Pinchas

Reg. 77693

Patent attorney

Patshegen IP LLC

Boston, MA · 02110

857-453-3339

John W. Pint

Reg. 62385

Patent attorney

Access Advance LLC

Boston, MA · 02114

617-510-6050

John J Piskorski

Reg. 35647

Patent attorney

The Dow Chemical Company

Marlborough, MA · 01752

508-229-7662

Edmund Ralph Pitcher

Reg. 27829

Patent attorney

Goodwin Procter LLP

Boston, MA · 02109

617-570-1780

Gregory M. Pivarnik

Reg. 74131

Patent attorney

Boston, MA · 02115

671-919-6175

Jeffrey T Placker

Reg. 47862

Patent attorney

Holland & Knight, LLP

Boston, MA · 02116-3889

617-305-2010

Roshan J. Plamthottam

Reg. 79773

Patent agent

Wolf, Greenfield, & Sacks, P.C.

Boston, MA · 02210

617-646-8770

David P Pleynet

Reg. 64229

Patent attorney

ImmunoGen, Inc.

Waltham, MA · 02451

Robert Plotkin

Reg. 43861

Patent attorney

Blueshift IP, LLC

Cambridge, MA · 02142

617-207-6141

Elizabeth R Plumer

Reg. 36637

Patent attorney

Southborough, MA · 01772

508-485-9762

Edward S Podszus

Reg. 35983

Patent attorney

Osram Sylvania Inc.

Wilmington, MA · 01887

978-570-3428

Deborah A. Pohlmann

Reg. 81337

Patent agent

Morrison & Foerster

Boston, MA · 02116

857-234-5168

David W Poirier

Reg. 43007

Patent attorney

Signify North America Corp

Burlington, MA · 01803

617-949-6056

Samuel R. Polio

Reg. 78683

Patent agent

Choate Hall & Stewart, LLP

Boston, MA · 02110

617-248-4093

Lea C. Polito

Reg. 79346

Patent attorney

Morrison & Foerster LLP

Boston, MA · 02116

617-648-4801

Atsuko N Polzin

Reg. 67253

Patent attorney

Scholar Rock, Inc.

Cambridge, MA · 02139

857-259-3860

Michael Joseph Pomianek

Reg. 46190

Patent attorney

Wolf Greenfield & Sacks, PC

Boston, MA · 02210-2206

617-646-8000

Pakin Pongcheewin

Reg. 78547

Patent agent

Foley & Lardner LLP

Boston, MA · 02199

617-226-3110

Kellan D Ponikiewicz

Reg. 59701

Patent attorney

PerkinElmer

Waltham, MA · 02451

781-663-6034

Frank Paul Porcelli

Reg. 27374

Patent attorney

Fish & Richardson P.C.

Boston, MA · 02110-1878

617-521-7808

Madeleine G. Porter

Reg. 84146

Patent agent

Scituate, MA · 02066

339-236-9123

Mary E Porter

Reg. 33440

Patent attorney

Berlin, MA · 01503

978-838-2432

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?

2,869 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.