Patents by Inventor David W. Ankey

David W. Ankey 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).

  • Patient interface device
    Patent number: D483477
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: December 9, 2003
    Assignee: RIC Investments, Inc.
    Inventors: David W. Ankey, Jason P. Eaton, Steven Radney
  • Patient interface device
    Patent number: D489817
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 11, 2004
    Assignee: RIC Investments, Inc.
    Inventors: David W. Ankey, Jason P. Eaton, Steven Radney