Patents by Inventor Pierre Facon

Pierre Facon 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).

  • Patent number: 6228606
    Abstract: The present invention relates to a nutritive agar culture medium allowing the direct identification of pathogenic bacteria of the genus Listeria, said medium comprising a chromogenic synthetic substrate specifically cleaved by the phospholipase C specific of phosphatidylinositol (PIPLC).
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: May 8, 2001
    Assignee: Pasteur Sanofi Diagnostics
    Inventors: Jean-Pierre Facon, Frederic Simon
  • Patent number: 6037140
    Abstract: This invention relates to a selective medium for the culture and isolation of Gram.sup.- bacteria comprising at least one antibiotic specifically active against Gram.sup.+ bacteria and at least one bacteriocin.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: March 14, 2000
    Assignee: Pasteur Sanofi Diagnostics
    Inventors: Benoit Carles, Jean-Pierre Facon
  • Patent number: 5247281
    Abstract: This detector comprises a variable radio frequency oscillator (1) producing a first electrical signal, a transmission circuit (3) with a capacitive antenna to which said first signal is applied, a reception circuit (6) forming, with the transmission circuit (3), a selective coupler for picking up a second electrical signal at the frequency of the oscillator, and a circuit (9) for comparing the phases of the first and second electrical signals and producing an output signal in response to a variation of the phase shift between said signals due to the presence in the surroundings of the antenna of a foreign body to be detected.The detector further comprises a feedback circuit (13) driven by the output signal of the comparison circuit (9) and controlling the oscillator (1) in order to make the frequency of the first signal vary in the sense which tends to cancel out said variation of the phase shift.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: September 21, 1993
    Assignee: Societe anonyme dite Bertin & Cie
    Inventors: Pierre Facon, Pierre Sajot
  • Patent number: 4878417
    Abstract: Means for servo-controlling the position of a pneumatic actuator (14) comprise a circuit (20) for controlling a valve (10) for feeding the actuator, and a position sensor (30) and an acceleration sensor (34) which are associated with the moving member (16) of the actuator and which provide position and acceleration signals to the control circuit (20). The invention improves the stability and the accuracy with which the position of a pneumatic actuator is servo-controlled.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: November 7, 1989
    Assignee: Bertin & Cie
    Inventor: Pierre Facon