Patents by Inventor James Orrock Macgregor

James Orrock Macgregor 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 vinyl isothiocyanates
    Patent number: 6069255
    Abstract: A process for preparing a vinyl isothiocyanate comprises contacting a halogen-substituted allyl thiocyanate, in solution and at an elevated temperature, with an acidic material which is either an acid or a halide or oxyhalide of an inorganic acid. The halogen-substituted allyl thiocyanate may be prepared from a dihalogenated alkene. The vinyl isothiocyanate may subsequently be converted to a thiazole.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: May 30, 2000
    Assignee: Laporte Industries, Limited
    Inventors: James Ian Grayson, Graham Heyes, Arthur Jackson, James Orrock Macgregor, Brian John Somerville