Patents by Inventor Jianzhang Zhao

Jianzhang Zhao 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).

  • Water-and organic-soluble cucurbituril derivatives, their preparation methods, their separation methods and uses
    Patent number: 7179908
    Abstract: Provided are cucurbituril derivatives having the formula (1), their preparation methods and uses: where X is O, S or NH; R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl groups of 1 to 30 carbon atoms, alkenyl groups of 1 to 30 carbon atoms, alkynyl groups of 1 to 30 carbon atoms, alkylthio groups of 1 to 30 carbon atoms, alkylcarboxyl groups of 1 to 30 carbon atoms, hydroxyalkyl groups of 1 to 30 carbon atoms, alkylsilyl groups of 1 to 30 carbon atoms, alkoxy groups of 1 to 30 carbon atoms, haloalkyl groups of 1 to 30 carbon atoms, nitro group, alkylamine groups of 1 to 30 carbon atoms, amine group, aminoalkyl groups of 1 to 30 carbon atoms, unsubstituted cycloalkyl groups of 5 to 30 carbon atoms, cycloalkyl groups of 4 to 30 carbon atoms with hetero atoms, unsubstituted aryl groups of 6 to 30 carbon atoms, and aryl groups of 6 to 30 carbon atoms with hetero atoms; and n and m are independently integers from 4 to 20 and from 1 to 7, respectively.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: February 20, 2007
    Assignee: Pohang University of Science and Technology Foundation
    Inventors: Kimoon Kim, Jianzhang Zhao, Hee-Joon Kim, Soo-Young Kim, Jinho Oh
  • Water-and organic-soluble cucurbituril derivatives, their preparation methods, their separation methods and uses
    Publication number: 20030212268
    Abstract: Provided are cucurbituril derivatives having the formula (1), their preparation methods and uses: 1
    Type: Application
    Filed: March 4, 2003
    Publication date: November 13, 2003
    Inventors: Kimoon Kim, Jianzhang Zhao, Hee-Joon Kim, Soo-Young Kim, Jinho Oh