Patents by Inventor Guy Marquet

Guy Marquet 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).

  • Process and apparatus for the continuous checking of the supermelting of the solidification front of a monocrystal during formation and application to the checking of the growth of a crystal
    Patent number: 4797174
    Abstract: The present invention relates to a process and an apparatus for checking the supercooling of a monocrystal during its formation.There is a continuous measurement of the potential difference between one point of the forming crystal and one point of a solid part of the material separated from the liquid by a reference interface differing from the solidification front. This potential difference makes is possible to determine the temperature deviation due to the supercooling at the solidification front and the dopant concentration of the crystal being formed.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: January 10, 1989
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Jean Comera, Pierre Contamin, Jean-Jacques Favier, Guy Marquet