Patents by Inventor Thomas R. Kovalcik

Thomas R. Kovalcik 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 lyophilizing ifosfamide
    Patent number: 5972912
    Abstract: A method of lyophilizing an oxazaphosphorin and a preparation produced thereby including dissolving an oxazaphosphorin in water, adding an amino acid to a molar ratio of between 1 to 10 amino acid to 1 oxazaphosphorin to produce a mixture and lyophilizing said mixture to remove said water, is disclosed.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: October 26, 1999
    Assignee: S.P. Pharmaceuticals
    Inventors: Michael J. Marek, Garnet G. Smith, Thomas R. Kovalcik