Patents by Inventor Asher Elgavi

Asher Elgavi 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).

  • Cyanohydrination process
    Patent number: 5187296
    Abstract: A process for the assymetric cyanohydrination of m- phenoxybenzaldehyde with HCN, using a catalytically effective amount of enantiomeric cyclo(phenylalanylhistidine) absorbed on a solid support comprising a nonionic polymer resin is described.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: February 16, 1993
    Assignee: Bromine Compounds Limited
    Inventors: Yigal Becker, Asher Elgavi, Youval Shvo
  • Cyanohydrination catalyst and process
    Patent number: 5057477
    Abstract: A catalyst for the asymmetric cyanohydrination of m-phenoxybenzaldehyde, comprises a catalytically effective amount of enantiomeric cyclo (phenylalanyl-histidine) adsorbed on a solid support comprising a non-ionic polymer resin.The catalyst is particularly useful as a catalyst in a process for the preparation of (s)-m-phenoxybenzaldehyde cyanohydrin, in which m-phenoxybenzaldehyde is reacted in a cyanohydrination solvent.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: October 15, 1991
    Assignee: Bromine Compounds Ltd.
    Inventors: Yigal Becker, Asher Elgavi, Youval Shvo