Patents by Inventor Philippe Delis

Philippe Delis 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 of adipic acid by hydrocarboxylation of pentenic acids
    Patent number: 5268505
    Abstract: Adipic acid is prepared by hydrocarboxylating at least one pentenic acid in the presence of a catalytically effective amount of rhodium values, whether metallic rhodium or a compound thereof, and an iodine-containing promoter therefor, as well as in the presence of a cocatalytically effective amount of at least one of iridium, ruthenium, osmium or compound thereof.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: December 7, 1993
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Delis, Philippe Denis, Jean-Michel Grosselin, Francois Metz