Patents by Inventor David G. Acton

David G. Acton 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).

  • Intermediates for cephalosporin compounds
    Patent number: 5126444
    Abstract: Cephalosporin antibiotics having a 3-position substituent of the formula: ##STR1## are described; wherein R.sup.1 is hydrogen or certain substituted alkyl groups, Z is CH or N, R.sup.2 and R.sup.3 are hydroxy or in vivo hydrolysable esters thereof, (R.sup.12).sub.n represents various optional substituents and X=Y is an olefin, oxime, azo or related group. Processes for their preparation and use are described.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: June 30, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: David G. Acton, David H. Davies, Jeffrey P. Poyser
  • Cephalosporin compounds
    Patent number: 5064824
    Abstract: Cephalosporin antibiotics having a 3-position substituent of the formula: ##STR1## are described; wherein R.sup.1 is hydrogen or certain substituted alkyl groups, Z is CH or N, R.sup.2 and R.sup.3 are hydroxy or in vivo hydrolysable esters thereof, (R.sup.12).sub.n represents various optional substituents and X=Y is an olefin, oxime, azo or related group. Processes for their preparation and use are described.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: November 12, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: David G. Acton, David H. Davies, Jeffrey P. Poyser