Patents by Inventor Jean-Paul Christy

Jean-Paul Christy 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).

  • Interferometric device for measurement of variations in length of a sample under the influence of temperature
    Patent number: 3930730
    Abstract: An interferometric device is provided for measurement of the variations in length of a sample under the influence of temperature, the length of the sample being within a plane of reference and a plane of measurement defined by two plane terminal faces of the sample.
    Type: Grant
    Filed: September 6, 1973
    Date of Patent: January 6, 1976
    Assignee: Republic of France
    Inventors: Albert Adelin Suffrein Laurens, Jean-Paul Christy, Jean-Pierre Durand