Patents by Inventor David Taube

David Taube 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).

  • Method for increasing the purity of amphoteric compound compositions
    Patent number: 4453007
    Abstract: Provided is a method of increasing the purity of amphoteric compound compositions. The method is: (a) providing an amount of a crude amphoteric compound composition, (b) using a portion of the crude composition to prepare in solution a cationic salt of the amphoteric compound, (c) using another portion of the crude composition to prepare in solution an anionic salt of the amphoteric compound, (d) mixing together the solutions wherein a precipitate is formed, and (e) collecting the precipitate which is an amphoteric compound composition of higher purity than the crude composition.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: June 5, 1984
    Assignee: USV Pharmaceutical Corporation
    Inventor: David Taube