Patents by Inventor Jenq C. Chang

Jenq C. Chang 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).

  • Error checking in blood analyzer
    Patent number: 5590052
    Abstract: The present invention provides various methods for detecting errors in a blood analysis system. The system includes a blood analyzer and a molded plastic rotor with a series of chambers and capillary channels through which blood is processed and distributed to cuvettes which contain lyophilized reagents. The rotor is placed in the analyzer which spins the rotor, and an optical system reads the cuvettes as light is flashed through the cuvettes.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: December 31, 1996
    Assignee: Abaxis, Inc.
    Inventors: Anne R. Kopf-Sill, Steven N. Buhl, Glenda L. Choate, Lloyd A. Schick, Robert E. Nagle, Jenq C. Chang, Daniel Bernstein, Wayne A. Britt