Patents by Inventor Stewart R. Montgomery

Stewart R. Montgomery 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).

  • Synthesis of aliphatic polyamines
    Patent number: 4721811
    Abstract: An improved process for selectively forming aliphatic polyamines from aliphatic polynitriles having 2 to 3 atoms between cyano groups by reacting aliphatic polynitrile, with hydrogen in the presence of a primary or secondary amine, through a fixed bed reactor while continuously contacting the reactants with granular Raney cobalt packed therein.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: January 26, 1988
    Assignee: W. R. Grace & Co.
    Inventors: Martin B. Sherwin, Shu-Chieh P. Wang, Stewart R. Montgomery