Patents by Inventor Kathryn M. Sanchez

Kathryn M. Sanchez 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).

  • Hydrogenation of polyenes
    Patent number: 5321176
    Abstract: Hydrogenation of a polyene to a monoene using a ruthenium catalyst that is promoted with water.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: June 14, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kathryn M. Sanchez
  • Preparation of 6-aminocapronitrile
    Patent number: 5296628
    Abstract: A process for the conversion of adiponitrile to 6-aminocapronitrile in high yield and high selectivity using Raney nickel catalyst and a reaction mixture containing a low valent transition metal complex.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: March 22, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kathryn M. Sanchez
  • Preparation of cyclododecene
    Patent number: 5177278
    Abstract: Partial hydrogenation of 1,5,9-cyclododecatriene to form cyclododecene using ruthenium catalyst and a solvent selected from the group consisting of esters and ethers having a boiling point higher than 245 degrees C.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: January 5, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kathryn M. Sanchez