Patents by Inventor Iain Nelson Simpson

Iain Nelson Simpson 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).

  • Pharmaceutical compositions containing oxapenem-3-carboxylic acids
    Patent number: 7247622
    Abstract: An oxapenem compound which is, or is capable of forming, a zwitterion of formula wherein R is a C1-C8 branched or straight chain alkyl group which is substituted by a protonated nitrogen base. The compounds find particular use as high bioavailability ?-lactamase inhibitors.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: July 24, 2007
    Assignee: Amura Limited
    Inventors: Hans Rudolf Pfaendler, Iain Nelson Simpson
  • Pharmaceutical compositions containing oxapenem-3-carboxylic acids
    Publication number: 20040067929
    Abstract: An oxapenem compound which is, or is capable of forming, a zwitterion of formula Ia or Ib: (Ia), (Ib) wherein R is a C1-C8 branched or straight chain alkyl group which includes a protonated basic substituent. The compounds find particular use as high bioavailability &bgr;-lactamase inhibitors.
    Type: Application
    Filed: July 24, 2003
    Publication date: April 8, 2004
    Inventors: Hans Rudolf Pfaendler, Iain Nelson Simpson