Patents by Inventor Eric Lodewyk

Eric Lodewyk 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).

  • Process for calcium salts .alpha.-ketocarboxylic acids
    Patent number: 4076745
    Abstract: A process for the preparation of calcium salts of .alpha.-ketocarboxylic acids comprising reacting an .alpha.-ketocarboxylic acid with an amine, to afford a salt, said salt being soluble in the reaction medium, treating said salt with a source of calcium ion to afford the calcium salt of the .alpha.-ketocarboxylic acid, said salt being substantially insoluble in said reaction medium, and isolating said calcium salt from the reaction medium. This process is especially useful for the preparation of calcium salts of .alpha.-keto analogues of essential .alpha.-amino acids.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: February 28, 1978
    Assignee: Syntex (U.S.A.) Inc.
    Inventor: Eric Lodewyk