Patents by Inventor Stéphane Lelievre

Stéphane Lelievre 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).

  • Resolution method for a racemic mixture of aldehydes
    Patent number: 6613945
    Abstract: The invention concerns a resolution method for a racemic mixture of aldehyde of formula (I). The aldehydes of formula I are useful in their enantiomeric form or their racemic form for preparing transition metal complexes useful as catalysts in hydroformylation reactions of olefins.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: September 2, 2003
    Assignee: Rhodia Chimie
    Inventors: François Mercier, Stéphane Lelievre, François Mathey, Michel Spagnol