Patents by Inventor Didier Arthaud

Didier Arthaud 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).

  • Apparatus for the determination of the flashpoint of a substance
    Patent number: 5932796
    Abstract: An apparatus for determining the flashpoint of a substance, including a test cup adapted to contain the substance, a heating element which heats the substance, a tube and a needle valve which produce a calibrated flame, a temperature sensor which measures the temperature of the substance, and an optical detector, having at least one optical fiber, which detects variations in the light intensity from the flame, or from the ignited vapor emitted by the substance.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 3, 1999
    Assignee: Elf Antar France
    Inventors: Didier Arthaud, Alain Piquemal, Frederic Tort