Patents by Inventor Warnakulasooriya Manjulal Waas

Warnakulasooriya Manjulal Waas 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).

  • Publication number: 20130311275
    Abstract: An electronic sign includes a bi-stable display portion to display primary content such as price, type of offer, etc. and another secondary display portion to display secondary content such as enterprise name, logo, eye-catching message, etc. Enterprises are enabled to adhere to their organization's color theme while conveying secondary information. Secondary content may be fixed content or may be selected from a predefined set of content. The presently described electronic sign uses a passive medium to display secondary content along with a bi-stable display for displaying primary content, resulting in an effective, low cost solution.
    Type: Application
    Filed: August 20, 2012
    Publication date: November 21, 2013
    Inventors: Llavanya Fernando, Schayne Jallow, Sankalpa Gamwarige, Ushan Karunathilaka, Warnakulasooriya Manjulal Waas
  • Patent number: D873262
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: January 21, 2020
    Inventors: Llavanya Fernando, Neschae Fernando, Ranjan Kulathunga, Niroshan Karunaratne, Pubudu Karunaratna, Warnakulasooriya Manjulal Waas, Dilan Chamara Weekakkody, Timothy Anthony Becerra, Sankalpa Gamwarige, Asanka Alwis