Patents by Inventor Clark William Perry

Clark William Perry 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).

  • Salts of N-formyl-6-chlorotryptophan and .alpha.-methyl-p-nitrobenzylamine
    Patent number: 3988349
    Abstract: Racemic organic carboxylic acids are efficiently resolved into their enantiomers with antipodes of .alpha.-methyl-p-nitrobenzylamine.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: October 26, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Clark William Perry, Sidney Teitel
  • Optical resolution of organic carboxylic acids
    Patent number: 3965129
    Abstract: Racemic organic carboxylic acids are efficiently resolved into their enantiomers with antipodes of .alpha.-methyl-p-nitrobenzylamine.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: June 22, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Clark William Perry, Sidney Teitel
  • Salts of the .gamma.-lactone of (-)-threo-hydroxycitric acid with R(+)-.alpha.-methyl-p-nitrobenzylamine
    Patent number: 3965121
    Abstract: Racemic organic carboxylic acids are efficiently resolved into their enantiomers with antipodes of .alpha.-methyl-p-nitrobenzylamine.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: June 22, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Clark William Perry, Sidney Teitel