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 Raytheon Company, Foley Hoag LLP, and UCB, Inc..

Top cities in Massachusetts

All practitioners in Massachusetts

William Peter Long

Reg. 58542

Patent attorney

UCB, Inc.

Cambridge, MA · 02140

617-571-7055

Orlando Lopez

Reg. 46880

Patent attorney

Topsfield, MA · 01983

978-394-2719

Robin R Loporchio

Reg. 40071

Patent attorney

Raytheon Company

Waltham, MA · 02451

781-522-3045

Erica R Lore

Reg. 58032

Patent attorney

Invivyd Inc.

Waltham, MA · 02451

781-819-0080

Ralph Allen Loren

Reg. 29325

Patent attorney

Groton, MA · 01450

617-872-8541

Chris Lorenc

Reg. 79857

Patent agent

ARENTFOX SCHIFF LLP

Boston, MA · 02199

617-973-6215

Marie Lossky-Elias

Reg. 66585

Patent agent

Essex IP LLC

Cambridge, MA · 02139

617-447-8948

Jonathan C Lovely

Reg. 60821

Patent attorney

Sunstein Kann Murphy & Timbers LLP

Boston, MA · 02110-1618

617-443-9292

Cara Z Lowen

Reg. 38227

Patent attorney

Codiak BioSciences Inc.

Cambridge, MA · 02139

617-285-1008

Matthew B Lowrie

Reg. 38228

Patent attorney

Foley & Lardner LLP

Boston, MA · 02199

617-342-4006

David D Lowry

Reg. 38538

Patent attorney

Reading, MA · 01867

617-877-3957

David Lu

Reg. 65769

Patent attorney

K&L Gates LLP

Boston, MA · 02114

617-261-3252

Dongye Lu

Reg. 800139

Limited recognition

Foley Hoag LLP

Boston, MA · 02210

617-832-3124

Jie Lu

Reg. 81384

Patent agent

Goodwin Procter LLP

Boston, MA · 02210

617-570-8209

Kelly C Lu

Reg. 66646

Patent attorney

DePuy Synthes

Raynham, MA · 02767

800-227-6633

Shangxing Lu

Reg. 80263

Patent agent

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

202-240-9294

Weigang Lu

Reg. 78849

Patent agent

Dorchester, MA · 02125

678-908-6667

Yu Lu

Reg. 50306

Patent attorney

McCarter & English, LLP

Boston, MA · 02110

617-449-6500

Lyudmila Lubashev

Reg. 55408

Patent attorney

Raytheon Company

Waltham, MA · 02451

781-522-3041

Cassandra G. Luca

Reg. 75225

Patent agent

Choate Hall & Stewart, LLP

Boston, MA · 02110

510-390-5414

Allison Marie Lucier

Reg. 70205

Patent attorney

Holland & Knight LLP

Boston, MA · 02116

617-523-2132

Kathryn M Lumb

Reg. 46885

Patent attorney

Foley Hoag LLP

Boston, MA · 02210

617-832-1118

David R Lund

Reg. 69158

Patent attorney

Agenus Inc

Lexington, MA · 02421

781-674-4657

Chenghua Luo

Reg. 53247

Patent agent

Amgen Inc.

Cambridge, MA · 02142

617-444-5563

Flora Luo

Reg. 78667

Patent attorney

Wolf, Grennfield & Sacks, P.C.

Boston, MA · 02210

617-646-8591

Lan Luo

Reg. 80365

Patent agent

C4 Therapeutics, Inc.

Watertown, MA · 02472

617-231-0700

Weifei Luo

Reg. 75040

Patent agent

Belmont, MA · 02478

857-919-2331

Elmer C Lupton· Jr

Reg. 42817

Patent agent

Novate Co.

Charlestown, MA · 02129

617-388-5550

Christopher J Lutz

Reg. 44883

Patent attorney

Armis Intellectual Property Law LLC

Westborough, MA · 01581

978-764-7583

Michael C Lynn

Reg. 57490

Patent attorney

Boston Scientific Corporation

Marlborough, MA · 01752

508-683-5386

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.