Patents by Inventor John R. DeChristopher, Sr.

John R. DeChristopher, Sr. 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).

  • Biological sample mixing apparatus and method
    Patent number: 4845025
    Abstract: Automatic biological sample mixing apparatus for use in flow cytometry, wherein a sample container is secured loosely at its top by means of a multi-reagent dispensing head; and the container is mounted at its bottom on a resilient support disposed on an elliptically rotated member, to cause reagents introduced into the container to be thoroughly mixed with a sample in the container in a fast, efficient, gentle, and accurately repeatable manner.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: July 4, 1989
    Assignee: Coulter Corporation
    Inventors: Todd P. Lary, Jorge A. Quintana, Osvaldo E. Miranda, John R. DeChristopher, Sr., John D. Hollinger