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 Haley Guiliano LLP, Sullivan & Cromwell, LLP, and Cittone & Chinta LLP.

Top cities in New York

All practitioners in New York

Raffaele A DeMarco

Reg. 54061

Patent attorney

Sullivan & Cromwell, LLP

New York, NY · 10004-2498

212-558-4229

James P Demers

Reg. 34320

Patent attorney

Cittone & Chinta LLP

New York, NY · 10004

212-710-5619 X110

Theobald J Dengler

Reg. 34575

Patent agent

McGlew and Tuttle PC

Scarborough, NY · 10510

914-941-5600

Matthew T Dennehy

Reg. 52811

Patent attorney

Tarter Krinsky & Drogin LLP

New York, NY · 10018

212-216-8000

Johanna K Dennis

Reg. 55725

Patent attorney

Dennis Law PLLC

Buffalo, NY · 14226

716-431-4931

Manette Dennis

Reg. 30623

Patent attorney

Ostrager, Chong, Flaherty & Broitman, PCP.C.

New York, NY · 10022-7035

212-681-0600

Kurt R. Denniston

Reg. 59605

Patent attorney

Corning Incorporated

Painted Post, NY · 14870

607-248-1328

Fred Love Denson

Reg. 24325

Patent attorney

Law Office Of Fred L Denson

Webster, NY · 14580

585-872-4516

Lewis Derenzis· III

Reg. 84132

Patent agent

Poughkeepsie, NY · 12603

845-242-0479

Mario Derevjanik

Reg. 77433

Patent attorney

Haley Guiliano LLP

New York, NY · 10004

646-973-2500

Adam M. DeRosa

Reg. 77069

Patent attorney

Scully Scott Murphy & Presser, PC

Garden City, NY · 11530

516-742-4343

Frank V DeRosa

Reg. 43584

Patent attorney

Ryan, Mason & Lewis, LLP

Melville, NY · 11747

631-393-6447

Frank Joseph DeRosa

Reg. 26543

Patent attorney

Manhasset, NY · 11030

516-642-7247

Anish R. Desai

Reg. 73760

Patent attorney

Dechert LLP

New York, NY · 10036

212-698-3879

Chintan A. Desai

Reg. 76101

Patent attorney

Lippes Mathias LLP

New York City, NY · 10016

332-345-4500

Mitul I Desai

Reg. 46661

Patent attorney

Piper Jaffray

New York, NY · 10167

212-284-9330

Leo Charles DeSesso

Reg. 58003

Patent attorney

Paul Hastings LLP

New York, NY · 10166

212-318-6299

Jayadeep R Deshmukh

Reg. 34507

Patent attorney

Arent Fox

New York, NY · 10019

212-484-3979

John M DesMarais

Reg. 39655

Patent attorney

Desmarais LLP

New York, NY · 10169

212-351-3420

David J DeToffol

Reg. 39167

Patent attorney

New York, NY · 10004

212-962-2220

Monesh Devireddy

Reg. 902033

Limited recognition

Columbia Law School

New York, NY · 10027

305-988-2374

Daniel Alexander DeVito

Reg. 32125

Patent attorney

Skadden Arps

New York, NY · 10036

212-735-3210

Rosario DeVito

Reg. 54064

Patent attorney

Ohrenstein & Brown, LLP

Garden City, NY · 11530

516-873-6334

Dean E DeVoe

Reg. 50979

Patent attorney

Kings Park, NY · 11754

631-724-2086

James Michael Devoy

Reg. 68966

Patent agent

Rochester, NY · 14625

585-671-8646

Gretchen A. DeVries

Reg. 72505

Patent agent

Fish & Richardson P.C.

New York, NY · 10036

212-641-2269

Jwalant R Dholakia

Reg. 77732

Patent attorney

Fenwick & West LLP

New York, NY · 10010

212-430-2714

Ian G Di Bernardo

Reg. 40991

Patent attorney

Brown Rudnick LLP

New York, NY · 10036

646-732-6794

Anna D. Di Gabriele Petti

Reg. 59933

Patent attorney

Enzo Biochem, Inc.

New York, NY · 10022

212--58-3-0100

Giacomo V. Di Liberto

Reg. 81758

Patent agent

Haley Guiliano LLP

New York, NY · 10004

646-973-2536

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.