Patents by Inventor Frédéric Maurice Naud

Frédéric Maurice Naud 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).

  • Amine-substituted biphenyldiphosphines
    Patent number: 7589196
    Abstract: 1,1?-Biphenyl-2,2?-diphosphines having at least one amine substituent in the para position relative to the phosphine group and having the formulae are ligands for metal complexes which serve as catalysts for asymmetric addition reactions of prochiral organic compounds and whose catalytic properties can be tailored specifically to particular substrates by substitution of the amine group.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: September 15, 2009
    Assignee: Solvias AG
    Inventors: Benoît Pugin, Pierre Martin, Markus Müller, Frédéric Maurice Naud, Felix Spindler, Marc Thommen, Gianpietro Melone, Martin Kesselgruber
  • Catalytic hydrogenation of carbon-heteroatom double bonds
    Patent number: 7446236
    Abstract: Process for catalytically hydrogenating carbon-heteroatom double bonds, in particular for asymmetrically catalytically hydrogenating simple ketones, which includes the step of reacting the substrate with hydrogen in the presence of a hydrogenation catalyst and of a base, characterized in that the hydrogenation catalyst is a 5-coordinate ruthenium complex which in each case has a monophosphine ligand and a bidentate P-N ligand.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: November 4, 2008
    Assignee: Solvias AG
    Inventors: Frédéric Maurice Naud, Ulrich Pittelkow