Patents by Inventor Michel Quanquin

Michel Quanquin 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).

  • Equipment for the emission and distribution of light by optical fibers, particularly for in-line spectrophotometric control with the aid of a double beam spectrophotometer
    Patent number: 4820045
    Abstract: Equipment for the emission and distribution of light by optical fibres, particularly for in-line spectrophotometric control with the aid of a double beam spectrophotometer, namely one channel for the reference and one channel for the measurement. It has at least one complementary light source emitting through a system of optical fibres permanently towards a reference cell and sequentially towards one of the n measuring cells corresponding to the controls to be performed, the light information from the reference cell on the one hand and sequentially from each of the n measuring cells on the other being passed by the system of optical fibres respectively to the reference channel and to the measuring channel of the spectrophotometer.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: April 11, 1989
    Assignee: Commissariat A L'Energie Atomique
    Inventors: Gilbert Boisde, Michel Quanquin