Patents by Inventor Ching-Hong Chen

Ching-Hong Chen 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).

  • Apparatus for use in radioimmunoassays
    Patent number: 4090850
    Abstract: Antibody coated cellulose paper can be used in radioimmunoassays in conjunction with test apparatus comprising a receptacle tray with multiple wells, each of said wells having at its bottom an orifice of such size and shape as to retain liquids used in the procedure under given pressure conditions and permit the evacuation of said liquid under reduced pressure.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: May 23, 1978
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Ching-Hong Chen, Horng-Mou Tsay, Robert E. Heyer