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 Wolf, Greenfield & Sacks, P.C., Amgen, and Dana-Farber Cancer Institute.

Top cities in Massachusetts

All practitioners in Massachusetts

Cynthia Tianxin Chen

Reg. 61193

Patent attorney

Amgen

Cambridge, MA · 02141

617-444-5451

Emy L Chen

Reg. 61478

Patent agent

Dana-Farber Cancer Institute

Brookline, MA · 02445

617-529-4089

Fangli Chen

Reg. 51551

Patent attorney

Proskauer Rose LLP

Boston, MA · 02110-2600

617-526-9633

Jing Chen

Reg. 80161

Patent agent

Overland Pharmaceuticals (US), Inc.

Boston, MA · 02116

408-981-4988

Jingyao Chen

Reg. 800140

Limited recognition

McCarter & English LLP

Boston, MA · 02110

617-449-6500

Johnny Y Chen

Reg. 46614

Patent attorney

Ropes & Gray LLP

Boston, MA · 02110

617-951-7552

Liping Chen

Reg. 72218

Patent agent

Cardinal Intellectual Property, Evanston, IL

Waltham, MA · 02452

301-529-5674

Shuyan Chen

Reg. 64758

Patent agent

CellMosaic, LLC

Worcester, MA · 01606

508-770-8030

Suzhen Chen

Reg. 75623

Patent agent

Wellesley, MA · 02481

617-877-0149

Tani Chen

Reg. 52728

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8214

Xi Chen

Reg. 61380

Patent attorney

HiFiBiO Therapeutics

Cambridge, MA · 02139

410-227-6728

Yahua Jenny Chen

Reg. 55055

Patent attorney

Mintz Levin

Boston, MA · 02111

617-348-1602

Yi Chen

Reg. 58391

Patent agent

Olympus Surgical Technologies America

Southborough, MA · 01772

508-804-4709

Ying Chen

Reg. 72136

Patent attorney

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02109

617-598-7815

Yuxiang Chen

Reg. 82433

Patent attorney

Morrison & Foerster LLP

Boston, MA · 02116

351-217-5598

Regina C Cheung

Reg. 42409

Patent attorney

Cambridge, MA · 02139

617-253-4414

Victor Cheung

Reg. 66229

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

202-571-5012

Ling Cheung Hughes

Reg. 65065

Patent attorney

Milton, MA · 02186

617-832-5120

Dorothy Wu Chiang

Reg. 69535

Patent attorney

Sunstein Kann Murphy & Timbers LLP

Boston, MA · 02110

857-928-7718

Elbert C. Chiang

Reg. 60325

Patent attorney

Beam Therapeutics Inc.

Cambridge, MA · 02139

857-302-7629

Ellen C Childress

Reg. 33850

Patent agent

Reading, MA · 01867

781-944-5224

William L Childress

Reg. 42411

Patent agent

Reading, MA · 01867-3211

781-944-0012

Amrita K. Chiluwal

Reg. 71757

Patent attorney

Progress Software Corporation

Bedford, MA · 01730

781-280-4712

Douglas E Chin

Reg. 66713

Patent attorney

Hsuanyeh Law Group PC

Boston, MA · 02108

646-319-3854

Roshni M Chintalapati

Reg. 71439

Patent agent

CRISPR Therapeutics

Cambridge, MA · 02139

617-315-4600

Anthony T. Chirban

Reg. 83570

Patent agent

South Boston, MA · 02127

978-505-5508

Daniel P Chisholm

Reg. 55065

Patent attorney

Boston, MA · 02114

617-513-5043

Malcolm J Chisholm· Jr

Reg. 33665

Patent attorney

Lee, MA · 01238

413-243-2772

Thomas S Chlebeck

Reg. 70616

Patent attorney

Smith Baluch LLP

Boston, MA · 02116

314-329-5458

Mary Elizabeth Chlebowski

Reg. 66356

Patent attorney

McNeill PLLC

Cambridge, MA · 02140

470-604-7001

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.