Patents by Inventor John M. Horth

John M. Horth 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).

  • Rod assembly for multipole mass spectrometers
    Patent number: 4990777
    Abstract: A multiple rod assembly for multipole mass spectrometers in which the rods are supported in cooperative aligned relationship by ceramic rings with metal rings and brackets.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: February 5, 1991
    Assignee: Finnigan Corporation
    Inventors: James W. Hurst, Robert M. Smith, John M. Horth