At OTTERSTEDT & KAMMER PLLC, our people are truly our greatest asset. Each member of our firm offers unique talents, experience, and achievements that enrich our practice of law and service to our clients.

OTTERSTEDT & KAMMER PLLC is focused on prosecution and counseling; represented matters will be handled by highly experienced professionals.

Our Team

Founding Attorney
Paul J. Otterstedt

Founder Emeritus, Of Counsel
A. Thomas Kammer

Patent Agent
James P. Janniello

Of Counsel
Robert M. Trepp

Of Counsel
Louis J. Percello

Of Counsel

Michael J. Chang

* Not admitted in Connecticut

Our Firm

OTTERSTEDT & KAMMER PLLC is engaged exclusively in the practice of Intellectual Property Law, primarily patent, trademark, and copyright law. We value our client relationships and have an uncompromising commitment to excellence in procuring and licensing our clients’ intellectual property. The firm was founded in 2010.

Our offices are located in Greenwich, Connecticut. Our attorneys and agent are admitted to practice before the United States Patent and Trademark Office.

OTTERSTEDT & KAMMER PLLC counsels a diverse group of clients, from individual inventors and emerging businesses to Fortune 500 companies. Many of our clients are leaders in their respective industries, including computer hardware and software, electronics, data storage systems, semiconductors, electronic payment processing, broadband data services, and multimedia content distribution. To help our clients maintain their competitive edges, our highly experienced attorneys possess substantial technical and legal proficiency. A number of our professionals hold advanced degrees in their fields of technical expertise, which is invaluable in rendering the firm’s intellectual property legal services.

The firm has been recognized as a 2014 “Go-To Law Firm at the Top 500 Companies” for our work in Intellectual Property Law, as featured in the 2014 Spring Edition of “Intellectual Property,” a special stand-alone section delivered with the April 2014 Editions of Corporate Counsel and The American Lawyer magazines.

Outside the firm, our attorneys are actively involved in various legal and technical organizations, including the Practising Law Institute, American Intellectual Property Law Association, and Eastern New York Intellectual Property Law Association.