Patents by Inventor Polwattage Ganga Waruna Diwakara Costa

Polwattage Ganga Waruna Diwakara Costa 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).

  • Glove
    Patent number: D819925
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: June 12, 2018
    Assignee: Ansell Limited
    Inventors: Carrie Lirae Merck, Polwattage Ganga Waruna Diwakara Costa, Mathotarallage Amani Rasika Mathota