Patents by Inventor Kwok Sum Yu

Kwok Sum Yu 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).

  • Immobilization of specific binding assay reagents
    Patent number: 5861319
    Abstract: Methods and compositions are provided for specific binding assays in which specific binding reagents are immobilized on a solid phase. Immobilization is facilitated by covalently coupling specific binding assay reagents such as polypeptide receptors or analytes with water soluble polymers. Such water soluble polymers, for example star polymers such as dendrimers, provide production advantages of lot-to-lot uniformity and homogeneity, and can enhance sensitivity due to low non-specific binding to the solid phase.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: January 19, 1999
    Assignee: Dade Behring Inc.
    Inventors: Spencer H. Lin, Kwok Sum Yu, Pratap Singh, Steven E. Diamond