Patents by Inventor Jean-Luc Boulanger

Jean-Luc Boulanger 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).

  • Device for measuring the velocity of a fluid
    Patent number: 5383369
    Abstract: To avoid disturbing measurement dephasings due to reflections from walls, the fluid velocity-measurement device comprises a pair of input-output transducers (18 and 20) located inside measurement chamber (16) which has the form of a revolution ellipsoid, each of transducers (18 and 20) being mounted at one of the focal points (F1 and F2) of the ellipsoid.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: January 24, 1995
    Assignee: Schlumberger Industries
    Inventors: Butrus Khuri-Yakub, Patrice Ligneul, Jean-Luc Boulanger