Patents by Inventor Kenneth J McEwan

Kenneth J McEwan 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).

  • Metallo-porphyrins
    Patent number: 6235895
    Abstract: A compound of formula (I) or (II), wherein: M is Pb or Sn or Bi, n is 1 to 20, each R1 is independently —SiR3 or R or —CCSiR3 or —CCR or H, each R2 is independently —CCSiR3 or —CCR or H, each X is independently H or C1 to C20 hydrocarbyl optionally including a carboxylic acid or ester group, each Y is independently H or C1 to C20 hydrocarbyl, each R is independently H or C1 to C20 hydrocarbyl, Z is C1 to C20 alkylene or arylene.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: May 22, 2001
    Assignee: The Secretary of State for Defence
    Inventors: Kenneth J McEwan, Harry Anderson