Patents by Inventor Ka H. Cheng

Ka H. Cheng 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).

  • Automated fluid bed process
    Patent number: 5459318
    Abstract: The present invention provides an apparatus and process for monitoring the moisture content of particulate material within a fluid bed apparatus such as a fluid bed granulator or fluid bed dryer. The apparatus comprising a probe with a conduit means for near infrared light wherein the end of the probe is positioned in the bowl of a fluid bed apparatus in a region of constant bulk density wherein said probe may be operably linked to a near infrared analyzer.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: October 17, 1995
    Assignee: McNeil-PPC-Inc.
    Inventors: Miguel A. Cacho, Ka H. Cheng