Patents by Inventor Peter S. Friend

Peter S. Friend 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).

  • Chiral cyanohydrination process
    Patent number: 4611076
    Abstract: Chiral aromatic cyanohydrins are prepared by treating an aromatic aldehyde with cyanide ions in the presence of an inert, aprotic solvent and a chiral cyclo(phenylalanyl-histidine) and an alcohol. The technique is especially useful for reducing the induction period when starting-up the process, increase the rate of reaction and to produce a product of increased enantiomeric selectivity.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: September 9, 1986
    Assignee: Shell Oil Company
    Inventors: Walter Dong, Peter S. Friend
  • Downflow isomerization of epoxides
    Patent number: 4600800
    Abstract: An epoxide is isomerized in the liquid phase in the presence of a solid alumina catalyst and preferably an inert gaseous diluent, the isomerization conducted in the downflow mode.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: July 15, 1986
    Assignee: Shell Oil Company
    Inventors: Robert H. Ellison, Peter S. Friend