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 Arrakis Therapeutics, McCarter & English, LLP, and Seyfarth Shaw.

Top cities in Massachusetts

All practitioners in Massachusetts

Erik J Spek

Reg. 61065

Patent attorney

Arrakis Therapeutics

Waltham, MA · 02451

857-498-0850

Michael J Spellberg

Reg. 73077

Patent agent

Medford, MA · 02155

617-281-5375

Christina M Sperry

Reg. 47106

Patent attorney

McCarter & English, LLP

Boston, MA · 02110

617-449-6616

William Spinola

Reg. 82270

Patent attorney

Seyfarth Shaw

Boston, MA · 02210

617-946-4830

Chethan K Srinivasa

Reg. 62978

Patent attorney

Foley & Lardner LLP

Boston, MA · 02199

617-342-4000

Pavanaram K Sripada

Reg. 47338

Patent agent

Newton, MA · 02459

617-964-4359

Evan M. St. Jean

Reg. 79776

Patent attorney

Boston, MA · 02116

781-820-8289

Maximus G. St. John

Reg. 75774

Patent agent

Gradiant Corporation

Woburn, MA · 01801

781-819-5052

Philip R Stafford

Reg. 40183

Patent agent

Boston, MA · 02116

801-710-1794

Christopher W Stamos

Reg. 35370

Patent attorney

Lincoln, MA · 01773

781-259-0959

Anna E Stanford

Reg. 69355

Patent attorney

Boylston, MA · 01505

256-762-7281

Christopher J. Stankus

Reg. 71556

Patent agent

Boston Scientific

Marlborough, MA · 01752

508-382-9474

Courtney L Stanton

Reg. 63508

Patent agent

Sagamore Beach, MA · 02562

774-487-7573

Edward A Stanton

Reg. 80639

Patent agent

WOLF, GREENFIELD & SACKS P.C.

Boston, MA · 02210

617-646-8873

Alan W Steele

Reg. 45128

Patent attorney

Alan W. Steele, LLC

Cambridge, MA · 02142

617-583-1380

Jason P. Stegall

Reg. 77492

Patent agent

Mintz

Boston, MA · 02111

806-236-9451

Pascal A Stein

Reg. 55646

Patent agent

EMD Serono, Inc.

Rockland, MA · 02370

978-294-1510

Donald R Steinberg

Reg. 37241

Patent attorney

Boston, MA · 02116

617-721-4248

Mark Steinberg

Reg. 40829

Patent attorney

Intrinsic Law Corp.

Waltham, MA · 02451

617-420-0079

Charlene A Stern-Dombal

Reg. 57961

Patent attorney

AVEO Pharmaceutical, Inc.

Cambridge, MA · 02139

617-299-5702

Daniel S Sternberg

Reg. 70946

Patent attorney

Bose Corporation

Framingham, MA · 01701

508-766-7926

Joel Stettenheim

Reg. 48797

Patent attorney

Milstein, Zhang & Wu, LLC

Newton, MA · 02465

802-384-1333

Emily J Stevens

Reg. 48831

Patent attorney

Cambridge, MA · 02138

617-661-4423

Richard L Stevens· Jr

Reg. 44357

Patent attorney

TSB Law, LLC

Westborough, MA · 01581

508-418-8077

Christian P Stevenson

Reg. 77354

Patent agent

Morgan, Lewis & Bockius LLP

Boston, MA · 02110

617-341-7843

Charlotte R. Stewart-Sloan

Reg. 79827

Patent agent

Wolf Greenfield & Sacks P.C.

Boston, MA · 02210

617-646-8341

John J Stickevers

Reg. 39387

Patent attorney

Sunstein Kann Murphy & Timbers, LLP

Boston, MA · 02110-1618

617-443-9292

Kateryna Stone

Reg. 84312

Patent agent

Choate, Hall & Stewart

Boston, MA · 02110

617-248-4004

Krista K. Stone

Reg. 66124

Patent attorney

Office of the General Counsel

Shrewsbury, MA · 01545

774-455-7303

Michael Stone

Reg. 32442

Patent attorney

Rockport, MA · 01966

617-510-1262

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.