Patents by Inventor Seraj A. M. Karolia

Seraj A. M. Karolia 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).

  • Catalysts and their use in the hydrolysis of nitriles
    Patent number: 4959502
    Abstract: When making an amide by hydrolysis of a nitrile in an aqueous medium containing a Raney copper or other black copper catalyst, the hydrolysis reaction can be improved if the catalyst has been contacted with an aqueous solution of a water soluble vanadium compound followed by thorough rinsing before introduction into the aqueous medium.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: September 25, 1990
    Assignee: Allied Colloids Ltd.
    Inventors: David Farrar, Gerald P. Benn, Seraj A. M. Karolia
  • Catalysts and their use in the hydrolysis of nitriles
    Patent number: 4906776
    Abstract: When making an a amide by hydrolysis of a nitrile in an aqueous medium containing a Raney copper catalyst, the yield of amide can be increased and the yield of impurities can be decreased by including vanadium metal in the catalyst. The vanadium may be present as Raney vanadium often as an alloy in the Raney copper.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: March 6, 1990
    Assignee: Allied Colloids Ltd.
    Inventors: Gerald P. Benn, David Farrar, Seraj A. M. Karolia