Patents by Inventor Graham Robert Crooks

Graham Robert Crooks 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).

  • Manufacture of organic nitriles
    Patent number: 3947487
    Abstract: Olefins are converted to nitriles by reacting with hydrogen cyanide in the presence of an organic thiol or sulphide and a catalytic amount of a cuprous salt which is soluble therein; especially for making 3-pentene nitrile from butadiene.
    Type: Grant
    Filed: October 11, 1974
    Date of Patent: March 30, 1976
    Assignee: Imperial Chemical Industries Ltd.
    Inventor: Graham Robert Crooks