New York

Patent attorneys in New York

New York hosts 3,822 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 New York. 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 Calhelha & Doyle, LLC, Mastercard International, Inc., and Cooley LLP.

Top cities in New York

All practitioners in New York

Colm James Dobbyn

Reg. 32217

Patent attorney

Mastercard International, Inc.

Purchase, NY · 10577

914-249-4707

Michelle L Dobrawsky

Reg. 48298

Patent attorney

New York, NY · 10009

212-777-6647

Amy K Dodenhoff

Reg. 72476

Patent attorney

Cooley LLP

New York, NY · 10036

214-479-6560

Mehmet Dogan

Reg. 82900

Patent agent

Ropes & Gray LLP

New York, NY · 10036

212-596-9549

Tyler Doh

Reg. 80274

Patent attorney

Steptoe LLP

New York, NY · 10036

212-378-7541

Lisa A Dolak

Reg. 35491

Patent attorney

Syracuse University College of Law

Syracuse, NY · 13244

315-443-9581

Frank Dolisi

Reg. 55121

Patent agent

Syosset, NY · 11791

516-742-2224

Casey D Donahoe

Reg. 74751

Patent attorney

Regeneron Pharmaceuticals, Inc.

Tarrytown, NY · 10591

814-931-8622

Conor F. Donnelly

Reg. 62878

Patent attorney

New York, NY · 10020

718-788-3454

Irah H Donner

Reg. 35120

Patent attorney

Manatt, Phelps & Phillips LLP

New York, NY · 10036

212-790-4650

Frederick J Dorchak

Reg. 29298

Patent attorney

Collard & Roe PC

Rosyln, NY · 11576

516-365-9802

Anne V Dougherty

Reg. 30374

Patent attorney

Yorktown Heights, NY · 10598

914-962-5910

Michael Paul Dougherty

Reg. 32730

Patent attorney

DLA Piper

New York, NY · 10020-1104

212-335-4580

Walter M Douglas

Reg. 34510

Patent attorney

Corning INC

Corning, NY · 14831

607-974-2431

Betsy Kingsbury Dowd

Reg. 52830

Patent attorney

BKDowd Law, P.C.

Port Jefferson, NY · 11777

631-676-2047

Ryan Edward Dowell

Reg. 78253

Patent attorney

Desmarais LLP

New York, NY · 10169

212-351-3400

Catherine R. Downey

Reg. 74271

Patent agent

Honeoye Falls, NY · 14472

585-738-2485

Brian J. Doyle

Reg. 76544

Patent attorney

Notaro, Michalos & Zaccaria PC

New York, NY · 10001

845-359-7700

Meaghan E. Doyle

Reg. 68323

Patent attorney

Calhelha & Doyle, LLC

Cornwall, NY · 12518

845-534-0400

Michael J Doyle

Reg. 29635

Patent attorney

Calhelha & Doyle, LLC

Cornwall, NY · 12518-1381

845-534-0400

Sean T Doyle

Reg. 67220

Patent attorney

Ambridge Partners LLC

New York, NY · 10018

212-871-5400

David William Dranchak

Reg. 59806

Patent agent

Endwell, NY · 13760

607-785-8145

Arthur Dresner

Reg. 24403

Patent attorney

Duane Morris, LLP

New York, NY · 10036-4086

212-692-1014

Douglas P Dreyer

Reg. 36786

Patent attorney

Pound Ridge, NY · 10576

646-522-6212

Julie M. Driansky

Reg. 58137

Patent attorney

D.E. Shaw Research

New York, NY · 10036

212-478-6739

Dimitrios T Drivas

Reg. 32218

Patent attorney

White & Case LLP

New York, NY · 10020-1095

212-819-8200

Robert F Dropkin

Reg. 25137

Patent attorney

New Hartford, NY · 13413

315-797-2774

Vladimir Drozdoff

Reg. 51333

Patent attorney

Office of Technology Transfer/Nichols

Cold Spring Harbor, NY · 11724

516-367-5010

Ronald L Drumheller

Reg. 25674

Patent attorney

Mahopac, NY · 10541

845-216-1343

Jane A. Dryer

Reg. 74074

Patent attorney

Brooklyn, NY · 11231

410-991-1833

Common questions

Do I need a patent attorney based in New York?

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 New York-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 New York?

3,822 active USPTO-registered patent practitioners list a New York 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.