Patents by Inventor Philippe R. Sanglet

Philippe R. Sanglet 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).

  • Process for the production of sodium hydrosulfite
    Patent number: 4859447
    Abstract: An improved high yield process and apparatus for producing sodium hydrosulfite by reacting sodium borohydride, sulfur dioxide, sodium hydroxide and sodium bisulfite is disclosed. A continuously recirculating split process stream may be used along with control of pH, temperatures, and concentration parameters to obtain sodium hydrosulfite yields in excess of 85%.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: August 22, 1989
    Assignee: Morton Thiokol, Inc.
    Inventor: Philippe R. Sanglet
  • Apparatus for the production of sodium hydrosulfite
    Patent number: 4788041
    Abstract: An improved high yield process and apparatus for producing sodium hydrosulfite by reacting sodium borohydride, sulfur dioxide, sodium hydroxide and sodium bisulfite is disclosed. A continuously recirculating split process stream may be used along with control of pH, temperatures, and concentration parameters to obtain sodium hydrosulfite yields in excess of 85%.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: November 29, 1988
    Assignee: Morton Thiokol, Inc.
    Inventor: Philippe R. Sanglet