Patents by Inventor Chris Zhisheng Chen

Chris Zhisheng Chen 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).

  • Quaternary ammonium functionalized dendrimers and methods of use therefor
    Patent number: 6440405
    Abstract: Quaternary ammonium functionalized dendrimers are described which are suitable for controlling the growth of microorganisms. The quaternary ammonium functionalized dendrimer biocides of the present invention are effective against a wide variety of microbial species including bacteria, spores, yeast, fungi, mold and multicellular microorganisms.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: August 27, 2002
    Assignee: University of Delaware
    Inventors: Stuart L. Cooper, Chris Zhisheng Chen