Patents by Inventor Douglas K. Chu

Douglas K. Chu 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).

  • Stabilization of creatine kinase (CK) and its application as a reference standard
    Patent number: 4339533
    Abstract: A stable intermediate composition of human or animal serum or a protein solution which contains a stable component consisting essentially of a mixed disulfide or dithiosulfonate derived from creatine kinase (ATP: creatine N-phosphotransferase, EC 2.7.3.2) is disclosed as well as its employment as a reference standard for the assay of creatine kinase.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: July 13, 1982
    Assignee: Technicon Instruments Corporation
    Inventor: Douglas K. Chu