Patents by Inventor Ashwin Kumar Viswanath

Ashwin Kumar Viswanath 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).

  • Holding chamber for face mask
    Patent number: D692122
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: October 22, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Dirk Ernest von Hollen, Eric Andrew Lieberman, Ashwin Kumar Viswanath, Robert Koshinskie, Donald Fraser van Royen