Patents by Inventor Yue-hui Li

Yue-hui Li 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).

  • Ruthenium complexes having hybrid amine ligands, their preparation and use
    Patent number: 8563739
    Abstract: The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enhanced by the addition of some selective additives.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: October 22, 2013
    Assignees: Enantiotech Corporation Limited, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
    Inventors: Christian A Sandoval, Yue-hui Li
  • Novel Ruthenium Complexes Having Hybrid Amine Ligands, Their Preparation And Use
    Publication number: 20110092712
    Abstract: The invention relates to a novel class of ruthenium complexes containing phosphine and hybrid amine ligands, their preparation and use as catalysts in the reduction of simple ketones to alcohols by molecular hydrogenation. The reactivity and enantioselectivity of such complexes in the asymmetric hydrogenation of simple ketones could be enchanced by the addition of some selective additives.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 21, 2011
    Inventors: Christian A. Sandoval, Yue-hui Li