Connecticut

Patent attorneys in Connecticut

Connecticut hosts 744 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 Connecticut. 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 Dilworth IP, Iogen Corporation, and Praxair, Inc..

Top cities in Connecticut

All practitioners in Connecticut

Jonathan L Schuchardt

Reg. 34428

Patent attorney

Dilworth IP

Trumbull, CT · 06611

203-220-8496

Claire M Schultz

Reg. 37232

Patent attorney

Iogen Corporation

Norwalk, CT · 06853

203-912-0309

Eric J Schultz

Reg. 41296

Patent agent

Niantic, CT · 06357

860-691-1996

Iurie A Schwartz

Reg. 43909

Patent attorney

Praxair, Inc.

Danbury, CT · 06819

203-837-2115

Fritz L Schweitzer· III

Reg. 39363

Patent attorney

St. Onge Steward Johnston & Reens LLC

Stamford, CT · 06905

203-324-6155

Fritz L Schweitzer· Jr

Reg. 17402

Patent attorney

St. Onge Steward Johnston & Reens, LLC

Stamford, CT · 06905

203-324-6155

Christopher D. Scott

Reg. 81767

Patent attorney

Getz Balich LLC

Farmington, CT · 06032

860-404-6646

Olin Thomas Sessions

Reg. 28114

Patent attorney

South Windsor, CT · 06074

860-644-5892

Anthony Sgroi· Jr.

Reg. 61785

Patent agent

Southbury, CT · 06488

203-631-7130

Sandra L Shaner

Reg. 47934

Patent agent

Cantor Colburn, LLP

Hartford, CT · 06103

860-286-2929

Steven J Shapiro

Reg. 35677

Patent attorney

Pitney Bowes, Inc.

Danbury, CT · 06810

203-796-6696

Bradley J. Shelowitz

Reg. 69388

Patent attorney

Moyles IP

Shelton, CT · 06484

516-317-6327

Eric Arthur Shevchenko

Reg. 32940

Patent agent

Andover, CT · 06232

860-742-5983

David E Shifren

Reg. 59329

Patent attorney

Otterstedt, Ellenbogen & Kammer, LLP

Stamford, CT · 06905

646-858-1380

David M Shofi

Reg. 39835

Patent attorney

Ridgefield, CT · 06877

203-438-9173

Raina J Siladi

Reg. 84243

Patent attorney

Stamford, CT · 06902

203-249-6516

David J Silvia

Reg. 49036

Patent attorney

Edwards Wildman Palmer LLP

Stamford, CT · 06901

203-353-6839

David L Simon

Reg. 61604

Patent agent

Dr. David Simon, LLC

Mansfield Center, CT · 06250

860-617-1728

Steven B Simonis

Reg. 54449

Patent attorney

St. Onge Steward Johnston and Reens LLC

Stamford, CT · 06905

203-324-6155

William Andrew Simons

Reg. 27096

Patent attorney

CantorColburn LLP

Hartford, CT · 06103-3207

860-286-2929

Karla E Sittnick

Reg. 69327

Patent agent

East Haven, CT · 06512

203-996-6593

William B Slate

Reg. 37238

Patent attorney

Bachman & LaPointe, P.C.

New Haven, CT · 06510

203-777-6628

Julia K. Smith

Reg. 59189

Patent attorney

Sikorsky Aircraft Corporation

Stratford, CT · 06615-9129

203-386-4000

Mary Breen Smith

Reg. 43512

Patent attorney

Boehringer Ingelheim USA Corporation

Ridgefield, CT · 06877

203-448-1532

Phillip Scott Smith

Reg. 55633

Patent attorney

Henkel Corporation

Rocky Hill, CT · 06067

860-221-3146

Robert S Smith

Reg. 24681

Patent attorney

Law Offices of Robert S. Smith

Manchester, CT · 06042

860-983-5838

Frances L Snow

Reg. 63476

Patent agent

Fran Snow

Bridgeport, CT · 06605

203-953-4468

George B Snyder

Reg. 27675

Patent attorney

Ware, Fressola, Maguire & Barber, LLP

Monroe, CT · 06468

203-261-1234

Wei Song

Reg. 64320

Patent agent

Groton, CT · 06340

860-961-7158

John T. Souvlis

Reg. 61987

Patent attorney

Branford, CT · 06405

000-000-0000

Common questions

Do I need a patent attorney based in Connecticut?

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 Connecticut-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 Connecticut?

744 active USPTO-registered patent practitioners list a Connecticut 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.