Patents by Inventor David M. Watkins

David M. Watkins 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).

  • Compositions containing platinum
    Patent number: 4250189
    Abstract: This invention relates to platinum co-ordination compounds, to pharmaceutical compositions containing them.Examples of compositions falling within the scope of the present invention include:[Pt(II)(NR.sub. 1 R.sub.2)(NR.sub. 3 R.sub.4)-(CR.sub.5 R.sub.6)(X)(Y)] or (1)[Pt(II)(NR.sub. 1 R.sub.2)(NR.sub. 3 R.sub.4)-(CR.sub.5 R.sub.6)(CR.sub. 5 R.sub.6)(CR.sub. 7 R.sub.8)(X)(Y)] or (2)[Pt(IV)(NR.sub. 1 R.sub.2)(NR.sub. 3 R.sub.4)-(CR.sub.5 R.sub.6)(X)(Y)(Z).sub. 2 ] or (3)[Pt(IV)(NR.sub. 1 R.sub.2)(NR.sub. 3 R.sub.4)-(CR.sub.5 R.sub.6)(CR.sub. 7 R.sub.8)(X)(Y)(Z).sub.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: February 10, 1981
    Assignee: Johnson, Matthey & Co., Limited
    Inventors: Paul D. Hydes, David M. Watkins
  • Compositions containing platinum
    Patent number: 4228090
    Abstract: A coordination compounds of platinum having the Structure: ##STR1## in which R is H or Me and pharmaceutical compositions containing them are disclosed.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: October 14, 1980
    Assignee: Johnson, Matthey & Co., Limited
    Inventors: Paul C. Hydes, David M. Watkins