Patents by Inventor Gilbert C. Widmer

Gilbert C. Widmer 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).

  • Process and device for the optical measurement of temperature and process for the production of a suitable probe
    Patent number: 4357106
    Abstract: The disclosed invention concerns a process for the optical measurement of temperature, a probe device for the carrying out of the process, and a process for producing probe. The probe device contains a pellet of liquid crystals which is contained within an envelope and arranged at the end of an optical fiber. The optical fiber receives light, which is continuously swept by different wavelengths and the light reflected by the liquid crystal is analyzed to detect the reflection peaks and deduce the probe temperature.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: November 2, 1982
    Inventors: Jean D. Tschirren, Gilbert C. Widmer, Jean-Paul Pellaux, Andre Coche, Marcel R. Samsel