Patents by Inventor Won D. Kim

Won D. Kim 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).

  • 2-pyridylmethylenepolyazamacrocyclophosphonic acids, complexes and derivatives thereof, for use as contrast agents
    Patent number: 5462725
    Abstract: 2-Pyridylmethylenepolyazamacrocyclophosphonic acid compounds and their derivatives are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization. The complexes are useful as contrast agents for diagnostic purposes.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: October 31, 1995
    Assignee: The Dow Chemical Company
    Inventors: Garry E. Kiefer, Won D. Kim