Patents by Inventor Shan CHUNG

Shan CHUNG 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).

  • Precast concrete plates
    Patent number: 6379601
    Abstract: A precast concrete plate, such as a roof tile, floor tile, wall tile or house siding, comprises in total from about 0.2% to about 5% by weight of a polymeric modifier having a Tg of above −40° C. The portion of said concrete which comprises no more than about 50% of the thickness of all the concrete which forms the plate, when measured from the bottom surface of the plate towards the top surface of the plate, includes at least about 60% by weight of said polymeric modifier. The plates have a relatively higher degree of resistance to flexural loadings and resistance to impact-impulse loadings in comparison to concrete plates which comprise no polymeric modifier, thus rendering them less likely to be broken or fractured during their storage, transfer and assembly.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 30, 2002
    Assignee: Rohm and Haas Company
    Inventors: Michael Damian Bowe, Roger Shan Chung Hsin
  • Precast concrete plates
    Publication number: 20010045685
    Abstract: A precast concrete plate, such as a roof tile, floor tile, wall tile or house siding, comprises in total from about 0.2% to about 5% by weight of a polymeric modifier having a Tg of above −40° C. The portion of said concrete which comprises no more than about 50% of the thickness of all the concrete which forms the plate, when measured from the bottom surface of the plate towards the top surface of the plate, includes at least about 60% by weight of said polymeric modifier. The plates have a relatively higher degree of resistance to flexural loadings and resistance to impact-impulse loadings in comparison to concrete plates which comprise no polymeric modifier, thus rendering them less likely to be broken or fractured during their storage, transfer and assembly.
    Type: Application
    Filed: June 28, 2001
    Publication date: November 29, 2001
    Inventors: Michael Damian Bowe, Roger Shan Chung Hsin
  • Precast concrete plates
    Patent number: 6311448
    Abstract: A precast concrete plate, such as a roof tile, floor tile, wall tile or house siding, comprises in total from about 0.2% to about 5% by weight of a polymeric modifier having a Tg of above −40° C. The portion of said concrete which comprises no more than about 50% of the thickness of all the concrete which forms the plate, when measured from the bottom surface of the plate towards the top surface of the plate, includes at least about 60% by weight of said polymeric modifier. The plates have a relatively higher degree of resistance to flexural loadings and resistance to impact-impulse loadings in comparison to concrete plates which comprise no polymeric modifier, thus rendering them less likely to be broken or fractured during their storage, transfer and assembly.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: November 6, 2001
    Assignee: Rohm and Haas Company
    Inventors: Michael Damian Bowe, Roger Shan Chung Hsin