Patents by Inventor Peter A. Feldman

Peter A. Feldman 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 purifying blood clotting factors
    Patent number: 5445958
    Abstract: A method for at least partially separating vitamin K-dependent blood clotting factors from a mixture containing at least one such factor, e.g. a prothrombin complex concentrate, which comprises adsorption of said mixture on to a chelate of a polyvalent metal immobilized on an inert support, e.g. Cu.sup.2 + -primed Chelating Sepharose, followed by elution to yield one or more fractions enriched in respect of one of said factors.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: August 29, 1995
    Assignee: National Blood Authority
    Inventor: Peter A. Feldman