Patents by Inventor John P. Salsgiver

John P. Salsgiver 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).

  • Educational chromatograph
    Patent number: D243603
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: March 8, 1977
    Inventor: John P. Salsgiver
  • Gas analyzer
    Patent number: D256785
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: September 9, 1980
    Inventor: John P. Salsgiver