Patents by Inventor Paul Pfaeffli

Paul Pfaeffli 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).

  • Patent number: 6221870
    Abstract: The invention provides compounds of formula I wherein R1 to R6 are as defined in the description, and a process for preparing them. The compounds of formula I are useful as pharmaceuticals.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 24, 2001
    Assignee: Novartis AG
    Inventors: Paul Pfaeffli, Peter Neumann, Robert Swoboda, Peter Stütz
  • Patent number: 5885988
    Abstract: The invention provides compounds of formula I ##STR1## wherein X, Y, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the description, and a process for preparing them. The compounds of formula I are useful as pharmaceuticals.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: March 23, 1999
    Assignee: Novartis AG
    Inventors: Peter Neumann, Paul Pfaeffli, Max Peter Seiler, Robert Swoboda