Patents by Inventor Paul Rouyer

Paul Rouyer 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 alkyl adipates
    Patent number: 5670701
    Abstract: The alkyl adipates are prepared by reacting admixture consisting essentially of alkyl 3-pentenoate and alkyl 2-pentenoate with carbon monoxide and an alcohol, at elevated temperature, under superatmospheric pressure and in the presence of a catalytically effective amount of cobalt or a cobalt compound and a nitrogenous heterocyclic base.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: September 23, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Denis, Jean-Michel Grosselin, Jean Jenck, Francois Metz, Paul Rouyer
  • Apparatus for separation by decantation
    Patent number: 4039458
    Abstract: A decantation separation apparatus in which the material to be separated flows upwardly through an annular weir, and overflows to a decantation zone defined between the weir and a surrounding jacket. The separated liquid is withdrawn from the bottom of the decantation zone and the separated lighter phase from the top of the jacket, an obstacle for example in the form of a thin plate, being provided in the decantation zone above the liquid outlet for slowing the velocity of liquid within the decantation zone.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: August 2, 1977
    Assignee: Rhone-Poulenc Industries
    Inventors: Paul Maisonneuve, Paul Rouyer