Patents by Inventor Wang Xingwang

Wang Xingwang 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).

  • Organic salts and method for producing chiral organic compounds
    Patent number: 7683191
    Abstract: The invention relates to a method for producing chiral organic compounds by asymmetric catalysis, using ionic catalysts comprising a chiral catalyst anion. The claimed method is suitable for reactions which are carried out over cationic intermediate stages, such as iminium ions or acyl pyridinium ions. The invention enables the production of chiral compounds with high ee values, that until now could only be obtained by means of costly purification methods.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: March 23, 2010
    Assignee: Studiangesellschaft Kohle mbH
    Inventors: Benjamin List, Sonja Mayer, Martin Nolwenn, Wang Xingwang