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 Nielson Law Office, Raymond M. Nietupski, and Choate, Hall, and Stewart.

Top cities in Massachusetts

All practitioners in Massachusetts

David D Nielson

Reg. 52069

Patent attorney

Nielson Law Office

Quincy, MA · 02169

617-773-6866

Raymond Mark Nietupski

Reg. 37900

Patent agent

Raymond M. Nietupski

Millbury, MA · 01527

508-865-1372

Alycen P Nigro

Reg. 54339

Patent agent

Acton, MA · 01720

978--27-4-2858

Danielle M Nihan

Reg. 66966

Patent agent

Choate, Hall, and Stewart

Boston, MA · 02110

617-248-4033

Natalie Elizabeth Nilson

Reg. 903050

Limited recognition

Northeastern University School of Law

Boston, MA · 02115

508-817-2613

Lisa Nip

Reg. 81048

Patent agent

WSGR

Boston, MA · 02109

617-598-7875

Ariel M. Nissan

Reg. 72178

Patent agent

Formlabs Inc.

Somerville, MA · 02143

617-453-2576

William Nitkin

Reg. 27220

Patent attorney

Brookline, MA · 02447

617-964-2300

Keith Forrest Noe

Reg. 34686

Patent attorney

Lando & Anastasi LLP

Cambridge, MA · 02142

617-395-7039

Mark W Noel

Reg. 32162

Patent agent

Curis INC

Lexington, MA · 02421

617-503-6500

Kathryn E Noll

Reg. 48811

Patent attorney

Barclay Damon LLP

Boston, MA · 02110

617-274-2931

Walton A Norfleet

Reg. 52078

Patent attorney

John Crane

Marblehead, MA · 01945

860-302-5286

Karl Normington

Reg. 45586

Patent agent

Karl Normington d/b/a/ Normington Consulting Service

Arlington, MA · 02476

617-512-2987

Edward H Nortrup

Reg. 42941

Patent attorney

GTC Law Group

Newton, MA · 02459

781-720-9070

Robert J. Nortrup

Reg. 70207

Patent agent

GTC Law Group PC & Affiliates

Westwood, MA · 02090

908-462-4657

Aaron S Nudelman

Reg. 71588

Patent attorney

ElevateBio

Waltham, MA · 02451

206-639-5917

Vicente Nunez

Reg. 82356

Patent agent

Foley Hoag LLP

Boston, MA · 02210-2600

617-832-3082

Paul A Nuzzi

Reg. 60823

Patent agent

Choate, Hall & Stewart LLP

Boston, MA · 02110

617-248-4710

Chisom I. Nwakama

Reg. 81445

Patent attorney

WilmerHale

Boston, MA · 02109

617-526-6370

Michelle K. Nyein

Reg. 76714

Patent attorney

Eisai Inc.

Cambridge, MA · 02140

617-335-8083

David Giles O'Brien

Reg. 46125

Patent attorney

Microbiotix, Inc.

Worcester, MA · 01605

508-757-2800

Elizabeth A O'Brien

Reg. 46128

Patent attorney

Bourne, MA · 02532

508-409-1249

Gayle B O'Brien

Reg. 48812

Patent attorney

AbbVie,Inc.

Worcester, MA · 01605

508-688-8053

Stephen V O'Brien

Reg. 33269

Patent agent

Holyoke, MA · 01040

John T. O'Connell

Reg. 67453

Patent attorney

O'Connell and Associates

Holliston, MA · 01746

617-996-2500

Thomas Patrick O'Connell

Reg. 37997

Patent attorney

O'Connell Law Office

Arlington, MA · 02476

781-643-1845

Robert Daniel O'Connor

Reg. 54343

Patent attorney

Securities and Exchange Commission

Boston, MA · 02018

617-573-8979

Christine C O'Day

Reg. 38256

Patent attorney

The Broad Institute, Inc.

Cambridge, MA · 02142

617-714-8729

Arthur J O'Dea

Reg. 42952

Patent attorney

Gesmer Updegrove LLP

Boston, MA · 02109

617-531-8309

Timothy P. O'Dea

Reg. 73192

Patent attorney

Novartis Institutes for BioMedical Research, Inc.

Cambridge, MA · 02139

857-243-0085

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.