Patents by Inventor John Stanley Cotrell

John Stanley Cotrell 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).

  • Sample holder for mass spectrometer
    Patent number: 5859431
    Abstract: A sample holder (1) for use in mass spectrometry comprises a plate having a flat (5), which flat includes a first region having a smooth surface surrounding a second region having a rough surface (7). The second region defines the location for loading a sample.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: January 12, 1999
    Assignee: Finnigan Mat Limited
    Inventors: John Stanley Cotrell, Kuldip Kaur Mock