Patents by Inventor Philip Hammen

Philip Hammen 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).

  • Process for preparing 4?-substituted-9-deoxo-9a-aza-9a-homoerythromycin a derivatives
    Patent number: 6825327
    Abstract: The invention relates to processes for preparing compounds of formula 1 wherein R3 is as defined herein, and to pharmaceutically acceptable salts thereof, as well as intermediates useful in such processes. The compounds of formula 1 are antibacterial agents that may be used to treat various bacterial and protozoa infections. The invention also relates to pharmaceutical compositions containing compounds prepared by the processes of the invention and to methods of treating bacterial protozoa infections by administering such compounds.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: November 30, 2004
    Assignee: Pfizer Inc.
    Inventors: Constantine Sklavounos, John L. Tucker, Lulin Wei, Kerry P. Mahon, Philip Hammen, Joanna T. Negri, Richard S. Lehner
  • Process for preparing 4"-substituted-9-deoxo-9a-aza-9a-homoerythromycin a derivatives
    Publication number: 20030064939
    Abstract: The invention relates to processes for preparing compounds of formula 1 1
    Type: Application
    Filed: April 25, 2002
    Publication date: April 3, 2003
    Inventors: Constantine Sklavounos, John L. Tucker, Lulin Wei, Kerry P. Mahon, Philip Hammen, Joanna T. Negri, Richard S. Lehner