Patents by Inventor Ben Zhong Tang

Ben Zhong Tang 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).

  • Acetylene polymers and their use as liquid crystals
    Publication number: 20020033474
    Abstract: There is disclosed a liquid crystalline polyacetylene having a repeat structure of the formula 1
    Type: Application
    Filed: February 20, 2001
    Publication date: March 21, 2002
    Inventors: Ben Zhong Tang, Wing Yip Lam, Xiangxing Kong, Hoi Sing Kwok
  • Highly stereoregular polyacetylenes from organorhodium catalysts in aqueous media
    Patent number: 6291606
    Abstract: The present invention provides methods for obtaining highly stereoregular polyacetylenes from organorhodium catalysts in aqueous media in high yield. These methods afford substantial advantages in that they are rapid, economical, and utilize environmentally benign solvents. The present invention further provides methods for making thin films of polyphenylacetylenes that are tough and transparent.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: September 18, 2001
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Ben Zhong Tang, Wa Hong Poon
  • Fullerene-containing optical materials with novel light transmission characteristics
    Patent number: 6066272
    Abstract: Optical glasses and polymers are described that incorporate homogeneously dispersed fullerene molecules. The resultant materials may be used as optical filters, the cut-off frequency being easily adjustable by changing the fullerene content. To prepare glasses fullerene molecules are firstly functionalized by amination prior to being incorporated into a sol-gel process to prepare the glass. To prepare polymers a pre-existing polymer may be subject to fullerenation, or fullerene may be copolymerized with a selected monomer.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: May 23, 2000
    Assignee: The Hong Kong University of Science & Technology
    Inventors: Ben-zhong Tang, Nai-teng Yu, Han Peng, Shuk-mei Leung, Xuan-zheng Wu