Patents by Inventor Mark Spangenberg

Mark Spangenberg 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).

  • Foldable multiple capnography display
    Patent number: D724143
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: March 10, 2015
    Assignee: EKG Concepts, LLC
    Inventors: Gary Krause, Mark Spangenberg
  • Multiple capnography display
    Patent number: D726257
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 7, 2015
    Assignee: EKG Concepts, LLC
    Inventors: Gary Krause, Mark Spangenberg