Patents by Inventor Mark Oostman

Mark Oostman 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).

  • Valve for artificial respiration aid
    Patent number: D724198
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: March 10, 2015
    Assignee: The Lifeguard Store, Inc.
    Inventors: Mark Oostman, Michael Oostman
  • Mask for artificial respiration aid
    Patent number: D757251
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: May 24, 2016
    Assignee: The Lifeguard Store, Inc.
    Inventors: Mark Oostman, Michael Oostman