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 Clinical Data Inc., Proskauer Rose LLP, and Thermal Circuits.

Top cities in Massachusetts

All practitioners in Massachusetts

Amy F. Mendel

Reg. 55452

Patent attorney

Clinical Data Inc.

Newton, MA · 02458

617-527-9933

Julio J Mendez

Reg. 73848

Patent attorney

Proskauer Rose LLP

Boston, MA · 02110-2600

617-526-9609

Thomas S. Menke· Jr.

Reg. 67604

Patent agent

Thermal Circuits

Salem, MA · 01970

978-745-1162

Milan J Merhar

Reg. 69876

Patent agent

Northampton, MA · 01060

617-721-5292

Andrea Daley Merin

Reg. 67217

Patent attorney

Abiomed, Inc.

Danvers, MA · 01923

978-646-1580

Griffin N. Mesmer

Reg. 70309

Patent attorney

Troutman Pepper Locke LLP

Boston, MA · 02110

617-204-5100

Kayla L Metzger

Reg. 71780

Patent agent

Cooley LLP

Boston, MA · 02116-3736

617-937-2300

William A Meunier

Reg. 41193

Patent attorney

Mintz, Levin, Cohn, Ferris, Glovsky

Boston, MA · 02111

617-348-1845

Donna Marie Meuth

Reg. 36607

Patent attorney

Eisai Inc.

Cambridge, MA · 02140

857-829-6017

Mariah A. A. Meyer

Reg. 82783

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-1000

William Ellis Meyer

Reg. 30719

Patent attorney

Plymouth, MA · 02360-8277

508-224-3989

Leslie Meyer-Leon

Reg. 37381

Patent attorney

IP Legal Strategies Group P.C.

Cambridge, MA · 02140-3632

508-904-8984

Thomas Charles Meyers

Reg. 36989

Patent attorney

Brown Rudnick LLP

Boston, MA · 02111

617-856-8483

Sarah Mezini

Reg. 82643

Patent agent

Boston, MA · 02114

781-580-0079

Valene K Mezmin

Reg. 82479

Patent attorney

WilmerHale LLP

Boston, MA · 02109

617-526-6000

Xiang Dong Mi

Reg. 58601

Patent agent

Qualcomm

Andover, MA · 01810

978-253-1349

Kelly Z Miao

Reg. 83411

Patent agent

Prime Medicine, Inc.

Cambridge, MA · 02141

617-465-0013

Brian Michaelis

Reg. 34221

Patent attorney

Seyfarth Shaw LLP

Boston, MA · 02210

617-946-4830

Susan M Michaud

Reg. 42885

Patent attorney

Clark and Elbing, LLP

Boston, MA · 02110

617-428-0200

Mary E Michel

Reg. 81280

Patent agent

Analog Devices

Wilmington, MA · 01887

703-965-2128

Leonard Stanley Michelman

Reg. 17114

Patent attorney

Springfield, MA · 01101

413-737-1166

Arie M Michelsohn

Reg. 41195

Patent attorney

McNeill PLLC

Cambridge, MA · 02140

240-792-2692

Anthony L Miele

Reg. 34393

Patent attorney

Cooley Manion Jones LLP

Boston, MA · 02110

617-670-8571

Debra J Milasincic

Reg. 46931

Patent attorney

Moderna Therapeutics

Cambridge, MA · 02139

617-209-5879

Mandi B Milbank

Reg. 50853

Patent attorney

Acushnet Company

Fairhaven, MA · 02719

508-979-3217

Jonathan M Milette

Reg. 78397

Patent agent

Pepper Hamilton LLP

Boston, MA · 02110

617-443-3706

Kenneth Lee Milik

Reg. 30963

Patent agent

MKS Instruments, Incorporated

Andover, MA · 01810

978-645-5573

Barbara H. Miller

Reg. 74598

Patent agent

Belmont, MA · 02478

617-871-5109

Chris P Miller

Reg. 55852

Patent attorney

Radius, Inc

Cambridge, MA · 02139

617-551-4702

Deborah A Miller

Reg. 53328

Patent attorney

Nuvalent Inc.

Cambridge, MA · 02142

857-357-7000

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.