Patents by Inventor Pierre Gallezot

Pierre Gallezot 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).

  • Preparation method for 2-coumaranone
    Patent number: 5616733
    Abstract: Preparation process for 2-coumaranone in which glyoxylic acid, in vapor phase, is reacted with cyclohexanone, in the presence of a dehydrogenation catalyst.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 1, 1997
    Assignee: Societe Francaise Hoechst
    Inventors: Jean-Claude Vallejos, Alain Perrard, Yani Christidis, Pierre Gallezot
  • Preparation process for glyoxylic acid by catalytic oxidation of glyoxal in an aqueous medium in the presence of catalytic quantities of platinum
    Patent number: 5171884
    Abstract: Preparation process for glyoxylic acid in which glyoxal is subjected to a heterogeneous catalytic oxidation in an aqueous medium by oxygen in the presence of catalytic quantities of platinum.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 15, 1992
    Assignee: Societe Francaise Hoechst
    Inventors: Regine de Mesantourne, Pierre Gallezot