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 Wilson Sonsini Goodrich & Rosati, Raytheon, and Wolf Greenfield and Sacks.

Top cities in Massachusetts

All practitioners in Massachusetts

Robert E Walrath

Reg. 23056

Patent attorney

Stow, MA · 01775

978-897-9088

Andrew G. Walsh

Reg. 78247

Patent agent

Raytheon

Tewksbury, MA · 01876

978-858-5223

Benjamin J. Walsh

Reg. 82138

Patent agent

Wolf Greenfield and Sacks

Boston, MA · 02210

617-646-8213

Daniel A. Walsh

Reg. 80287

Patent attorney

McNeill PLLC

Cambridge, MA · 02142

612-200-2427

David A. Walsh

Reg. 76350

Patent agent

Reading, MA · 01867

617-308-4500

Edmund J Walsh

Reg. 32950

Patent attorney

Wolf, Greenfield & Sacks, P.C.

Boston, MA · 02210-2206

617-646-8000

Raymond J Walsh

Reg. 46090

Patent attorney

North Attleboro, MA · 02760

617-970-4000

Rosaleen A Walsh

Reg. 58113

Patent agent

Foley Hoag LLP

Boston, MA · 02210-2600

617-832-7123

Robert E Walter

Reg. 25245

Patent attorney

Pittsfield, MA · 01201

413-443-9910

Austin P Wang

Reg. 58627

Patent attorney

Sciex

Framingham, MA · 01701

508-383-7700

Bin Wang

Reg. 76646

Patent attorney

Hamilton, Brook, Smith & Reynolds, P.C.

Concord, MA · 01742

978-341-0036

Daniel Hao Hsiang Wang

Reg. 80138

Patent agent

Winchester, MA · 01890

484-844-2032

Gang Wang

Reg. 70975

Patent agent

Cooley LLP

Boston, MA · 02110

617-937-2390

Jennifer J. Wang

Reg. 68598

Patent attorney

Wolf, Greenfield and Sacks, P.C.

Boston, MA · 02210

617-646-8392

Jin Wang

Reg. 66467

Patent attorney

Jin Wang, Esq.

Boston, MA · 02110

617-449-6574

Jing Wang

Reg. 74896

Patent agent

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02108

617-598-7800

Jing Wang

Reg. 76379

Patent agent

Amherst, MA · 01002-1861

413-549-5804

Jing Wang

Reg. 69052

Patent agent

Morgan, Lewis & Bockius LLP

Boston, MA · 02110-1726

617-951-8720

Lixin Wang

Reg. 78488

Patent agent

Belmont, MA · 02478

313-608-8582

Oulu Wang

Reg. 74261

Patent attorney

ORNA THERAPEUTICS

WATERTOWN, MA · 02472

617-803-7705

Qing Hua Wang

Reg. 81415

Patent agent

Choate, Hall & Stewart LLP

Boston, MA · 02110

617-248-4014

Shixiong Wang

Reg. 79880

Patent attorney

Caldwell IP Law

Boston, MA · 02116

857-365-8874

Tishiang Wang

Reg. 70869

Patent agent

TiVo

Boston, MA · 02210

617-488-5946

Yanchun Wang

Reg. 82793

Patent agent

Enanta Pharmaceuticals, Inc.

Watertown, MA · 02472

617-607-0785

Yang Wang

Reg. 80981

Patent agent

Weston, MA · 02493

617-429-3920

Yi Wang

Reg. 67265

Patent agent

Sanofi

Cambridge, MA · 02142

617-685-5735

Yingjiao Wang

Reg. L1269

Limited recognition

Wilson Sonsini Goodrich & Rosati

Boston, MA · 02108-4403

Yun Wang

Reg. 78202

Patent agent

Medford, MA · 02155

626-261-3331

Nicole D Wanlass

Reg. 76925

Patent attorney

ZOLL Medical Corporation

Chelmsford, MA · 01824

351-500-4901

Katherine Christina Warburg

Reg. 75559

Patent agent

Mintz Levin Cohn Ferris Glovsky Popeo

Boston, MA · 02111

617-348-3049

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.