Patents by Inventor David Michael Sandgrund

David Michael Sandgrund 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).

  • Shelf
    Patent number: D778072
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: February 7, 2017
    Inventor: David Michael Sandgrund
  • Shelf
    Patent number: D778073
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: February 7, 2017
    Inventor: David Michael Sandgrund
  • Shelf
    Patent number: D917898
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 4, 2021
    Inventor: David Michael Sandgrund
  • Shelf
    Patent number: D917899
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 4, 2021
    Inventor: David Michael Sandgrund