Patents by Inventor Victor Malcolm Clark

Victor Malcolm Clark 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).

  • Preparation of 2-aryl-2-hydroxyiminoacetic acids (syn isomers)
    Patent number: 3959314
    Abstract: 2-Aryl-2-hydroxyiminoacetic acids rich in the syn isomer are prepared by reaction of an arylglyoxylic acid with hydroxylamine in an aqueous reaction medium, e.g. water, in the presence of a source of magnesium, calcium or zinc ions, e.g. magnesium hydroxide. The acids so obtained are of value as synthetic intermediates in the preparation of penicillin and cephalosporin antibiotics containing syn-2-aryl-2-hydroxyiminoacetamido side chains.
    Type: Grant
    Filed: February 14, 1974
    Date of Patent: May 25, 1976
    Assignee: Glaxo Laboratories Limited
    Inventors: Victor Malcolm Clark, Gordon Ian Gregory, Godfrey Basil Webb