Patents by Inventor YUHAN CORPORATION

YUHAN CORPORATION 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).

  • PROCESS FOR PREPARATION OF 2-METHYL-2'-PHENYLPROPIONIC ACID DERIVATIVES AND NOVEL INTERMEDIATE COMPOUNDS
    Publication number: 20130116439
    Abstract: The present invention relates to a process for preparing 2-methyl-2?-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefore. According to the present invention, pharmaceutically useful 2-methyl-2?-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
    Type: Application
    Filed: December 26, 2012
    Publication date: May 9, 2013
    Applicant: YUHAN CORPORATION
    Inventor: YUHAN CORPORATION
  • PROCESS FOR PREPARATION OF 2-METHYL-2'-PHENYLPROPIONIC ACID DERIVATIVES AND NOVEL INTERMEDIATE COMPOUNDS
    Publication number: 20130116466
    Abstract: The present invention relates to a process for preparing 2-methyl-2?-phenylpropionic acid derivatives showing antihistamine activity in more simplified way, intermediate compounds and their preparation processes used therefor. According to the present invention, pharmaceutically useful 2-methyl-2?-phenylpropionic acid derivatives can be prepared with high yield and purity on industrial scale.
    Type: Application
    Filed: December 26, 2012
    Publication date: May 9, 2013
    Applicant: YUHAN CORPORATION
    Inventor: YUHAN CORPORATION