Patents by Inventor Philippe Chemla

Philippe Chemla 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).

  • Method for protecting plants
    Publication number: 20010014692
    Abstract: A method of protecting and immunizing plants against attack by insects, acarina, nematodes and viruses, and for improving the qualities of the plants, which method comprises applying to the plants, to parts of the plants and/or to the locus of the plants an effective amount of a compound of formula I 1
    Type: Application
    Filed: January 5, 2001
    Publication date: August 16, 2001
    Inventors: Philippe Chemla, Michael Oostendorp
  • Process for the preparation of ste specific 1'-spiro-nucleosides
    Patent number: 5714599
    Abstract: The invention relates to a novel process for stereocontrolled preparation of 1',1'-disubstituted and 1'-spiro-nucleosides of the formula I ##STR1## in which the substituents A, R.sub.8 and R.sub.9 are as defined in claim 1, and to novel intermediates and their use in this process and to processes for the preparation of the novel intermediates. The process is illustrated by the example of biologically active (+)-hydantocidin.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: February 3, 1998
    Assignee: Novartis Corporation
    Inventor: Philippe Chemla
  • Intermediates for the preparation of 1',1'-disubstituted and 1'-spiro-nucleosides
    Patent number: 5641882
    Abstract: The invention relates to a novel process for stereocontrolled preparation of 1',1'-disubstituted and 1'-spiro-nucleosides of the formula I ##STR1## in which the substituents A, R.sub.8 and R.sub.9 are as defined in claim 1, and to novel intermediates and their use in this process and to processes for the preparation of the novel intermediates. The process is illustrated by the example of biologically active (+)-hydantocidin.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: June 24, 1997
    Assignee: Ciba-Geigy Corporation
    Inventor: Philippe Chemla