Patents by Inventor Ian David Camburn

Ian David Camburn 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).

  • Preparation of .beta.-lactam antibiotics
    Patent number: 4014868
    Abstract: The sodium salt of amoxycillin or other .beta.-lactam antibiotic is prepared by slurrying the antibiotic in zwitterionic form in a lower alkanol-containing organic solvent system, causing dissolution of the antibiotic by adding a sodium hydroxide or lower alkoxide, precipitating the resulting salt by adding an organic solvent and isolating the precipitate.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: March 29, 1977
    Assignee: Beecham Group Limited
    Inventors: Antony Rodney Berry, Ian David Camburn