Patents by Inventor David I. Silver

David I. Silver 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).

  • Stabilized pharmaceutical compositions containing derivatives of vitamins D2 and D3
    Patent number: 5565442
    Abstract: The invention relates to a process for stabilizing pharmaceutically active derivatives of vitamin D2 and D3. At least one pharmaceutically active vitamin D derivative is dissolved in a solvent with an antioxidant. This solution is mixed with a pharmaceutically acceptable stabilizer and at least one solid pharmaceutical excipient or carrier which is present in an amount sufficient to impart the characteristics of a solid to the composition. Finally, the solvent is removed.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: October 15, 1996
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventor: David I. Silver