Patents by Inventor Francois Marie Maurice Chabannes

Francois Marie Maurice Chabannes 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).

  • Spectroscopic analysis apparatus employing measurement and reference radiation
    Patent number: 4012145
    Abstract: The apparatus comprises a coherent radiation source which emits, in succession, respective ones of a plurality of different wavelengths. The emitted radiation is separated into a reference portion and a measurement portion. The measurement portion propagates through a medium such as the atmosphere to be analyzed and is received by a measurement detector. The reference portion is received directly by a reference detector. A processing circuit processes signals representing the portions, produced by the detectors to produce numerical data relating to the spectral analysis of the medium.
    Type: Grant
    Filed: September 6, 1974
    Date of Patent: March 15, 1977
    Assignee: Etat Francais
    Inventors: Francois Marie Maurice Chabannes, Edouard Sylvain Milot, Pierre Raymond Louis Godfrin, Pierre Philippe Louis Mailly