Patents by Inventor Susan E. MacWhorter

Susan E. MacWhorter 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).

  • Diagnostic radiopharmaceutical compounds (That)
    Patent number: 5690904
    Abstract: Tetradentate ligands are used to form neutral 99m-technetium complexes which may be useful as radiopharmaceuticals e.g. as brain imaging agents. The ligands have the structure ##STR1## where n is 2 or 3, m is 0-4, R is H or substituted or unsubstituted C.sub.1 -C.sub.6 alkyl, provided that one CR.sub.2 group adjacent the starred nitrogen atom represents CO and forms with the adjacent N atom, a --CONH-- amide group,Y is unsubstituted or substituted C.sub.1 -C.sub.6 alkyl, and one of X and X' represents H or a labile thiol protecting group while the other is unsubstituted or substituted C.sub.1 -C.sub.6 alkyl, alkenyl or alkynyl.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 25, 1997
    Assignee: Amersham International plc
    Inventors: Susan E. MacWhorter, Tiann-long Wu, Douglas S. White