Patents by Inventor Darla S. Murphy

Darla S. Murphy 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 purifying and isolating two ionic forms of somatomedin C
    Patent number: 4769361
    Abstract: Two different ionic forms of somatomedin C (pI 6.4-7.0 and pI 8.3-8.6) are separated and isolated by applying an aqueous solution of somatomedin C to a strong cation-exchange column, eluting the somatomedin C from the column by applying a salt concentration gradient at constant pH and recovering the two ionic forms in different eluant fractions.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: September 6, 1988
    Assignee: International Minerals & Chemical Corp.
    Inventors: Bruce D. Burleigh, Darla S. Murphy