Patents by Inventor Heewon Lee

Heewon Lee 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 Preparing Substituted Anisidines
    Publication number: 20080293972
    Abstract: Disclosed is a process for preparing substituted anisidines of formula I starting from substituted cyclic hydroxy-ketones II via aromatization through a substituted oxime intermediate IV in which R is C1-C6 alkyl or halogen, and Alk is C1-C6 alkyl. The substituted anisidines of formula I have been found to be useful as intermediates in the preparation of agents for the treatment of hepatitis C viral (HCV) infections.
    Type: Application
    Filed: November 1, 2006
    Publication date: November 27, 2008
    Inventors: Fabrice Gallou, Heewon Lee, Chris Hugh Senanayake, Jinhua J. Song, Zhulin Tan, Jinghua Xu, Nathan K. Yee
  • Low viscosity lyotropic cholesteric liquid crystal compositions
    Patent number: 4460492
    Abstract: A low viscosity, short pitch, cholesteric liquid crystal composition consisting of an alkali cromoglycate dissolved in water or water with a polar solvent, together with an optically active solute in sufficient concentration to render the cromoglycate cholesteric. Suitable compositions will reflect light in the visible spectrum and may be magnetically, electrically, or thermally addressed to produce optical effects therein.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: July 17, 1984
    Assignee: Temple University
    Inventors: Mortimer M. Labes, Heewon Lee