Patents by Inventor Maurice J. C. Harding

Maurice J. C. Harding 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).

  • Trialkylamine/sulfur dioxide catalyzed sulfenylation of carbamates
    Patent number: 4389528
    Abstract: An improved process for sulfenylating carbofuran in the presence of a solvent and acid acceptor with a disubstituted aminosulfenyl halide, in which the reaction is conducted in the presence of a catalytic amount of a complex of a lower alkylamine and sulfur dioxide, is disclosed and exemplified.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: June 21, 1983
    Assignee: FMC Corporation
    Inventors: John W. Ager, Maurice J. C. Harding, Charles E. Hatch, III
  • Trialkylamine/sulfur dioxide catalyzed sulfenylation of carbamates
    Patent number: 4329293
    Abstract: An improved process is disclosed for sulfenylating carbamates in the presence of a solvent and acid acceptor, in which the reaction between a carbamate and a sulfenyl halide is conducted in the presence of a catalytic amount of a complex of a lower alkylamine and sulfur dioxide. Several methods for preparing and utilizing the complex in the reaction are disclosed and exemplified.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: May 11, 1982
    Assignee: FMC Corporation
    Inventors: John W. Ager, Maurice J. C. Harding, Charles E. Hatch, III