Patents by Inventor Peter G. Edwards

Peter G. Edwards 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).

  • Phospha-adamantane(s) catalytic system
    Patent number: 7371705
    Abstract: A catalyst system capable of catalysing the carbonylation of an olefinally unsaturated compound is described. The 5 catalyst system is obtainable by combining: (a) a metal of Group VIB or Group VIII B or a compound thereof; and (b) a bidentate phosphine of general formula (I) Ad)s(CR4R5R6)TQ2-A-(K,D)Ar(E,Z)-B-Q1(Ad)u(CR1R2R3)v. Ad represents an optionally substituted adamantyl radical bonded to the phosphorous atom via any one of its tertiary carbon atoms. A method of production of the catalyst is also illustrated.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: May 13, 2008
    Assignee: Lucite International UK Limited
    Inventors: Graham R. Eastham, Paul A. Cameron, Robert P. Tooze, Kingsley J. Cavell, Peter G. Edwards, Dennis L. Coleman
  • Cationic complexes of technetium-99m
    Patent number: 4916214
    Abstract: The invention concerns cationic complexes of Technetium-99m with bidentate ligands (L), including complexes having the formulae [Tc(NO) X L.sub.2 ].sup.+ and [Tc L.sub.3 ].sup.+, which are of interest as heart imaging agents. The ligands are characterized by having the formula Y.sub.2 QZQY.sub.2, where each Q is phosphorus or arsenic, Z is a 2 or 3 carbon atom linking group, and at least one of the groups Y and Z includes at least one --COC--ether group.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: April 10, 1990
    Assignee: Amersham International plc.
    Inventors: Kwok W. Chiu, James D. Kelly, Ian A. Latham, David V. Griffiths, Peter G. Edwards