Patents by Inventor John Harvey Bright

John Harvey Bright 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 preparing bis(hydroxymethyl) methylphosphine oxide
    Patent number: 4049719
    Abstract: A process is provided for preparing bis(hydroxymethyl)methylphosphine oxide, comprising (1) thermally rearranging tris(hydroxymethyl)phosphine at elevated temperatures in the presence of a catalytic amount of a strong, non-oxidizing acid, having an ionization constant greater than 10.sup.-3, or a source thereof, to obtain the desired bis(hydroxymethyl)methylphosphine oxide, and (2) recovering the latter compound from the reaction mixture.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: September 20, 1977
    Assignee: American Cyanamid Company
    Inventor: John Harvey Bright