Patents by Inventor William F. Symes

William F. Symes 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).

  • Chlorinated s-triazine trione compositions and process for their preparation
    Patent number: 4122267
    Abstract: New chlorinated s-triazine trione compositions are prepared in essentially theoretical yields and with essentially no waste disposal requirements.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: October 24, 1978
    Assignee: Monsanto Company
    Inventors: George D. Nelson, Kenneth J. Nissing, William F. Symes
  • Production of chlorocyanuric acid
    Patent number: 3941784
    Abstract: Chlorocyanuric acid of increased particle size is obtained by reacting cyanuric acid, alkali metal hydroxide and chlorine in an aqueous reaction mixture in the presence of a promoter selected from the group consisting of polyoxyethylene, polyoxypropylene and polyoxyethylene-polyoxypropylene copolymers.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: March 2, 1976
    Assignee: Monsanto Company
    Inventors: George D. Nelson, Kenneth J. Nissing, William F. Symes