Patents by Inventor Nisheda Wanniarachchi

Nisheda Wanniarachchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Slipper
    Patent number: D590584
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: April 21, 2009
    Assignee: Metric Products, Inc.
    Inventors: Rita M. Haft, Nisheda Wanniarachchi, Chaminda Jayasinghe, Chandi Ranawake