Patents by Inventor Dacheng Tian

Dacheng Tian 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).

  • Biguanide formulations
    Publication number: 20040052848
    Abstract: In certain embodiments, the invention is directed to a pharmaceutical dosage form consisting essentially of a single phase matrix comprising metformin or a pharmaceutically acceptable salt thereof and at least one controlled release excipient; said dosage form providing a mean Tmax of metformin from about 3 to about 12 hours after administration to human patients.
    Type: Application
    Filed: May 20, 2003
    Publication date: March 18, 2004
    Inventors: Xiu-Xiu Cheng, Chih-Ming Chen, Steve Jan, Dacheng Tian
  • Controlled release oral dosage form
    Publication number: 20040005359
    Abstract: A sustained-release pharmaceutical preparation is disclosed in which a calcium channel blocker, preferably verapamil, core is surrounded by an optional seal coat layer and a water-insoluble coating.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 8, 2004
    Inventors: Xiu Xiu Cheng, Chih Ming Chen, Dacheng Tian
  • Apparatus and method for regulating the delivery of bulk tablets to a tablet transport system
    Publication number: 20030164279
    Abstract: This invention relates to an apparatus and method for regulating the delivery rate of bulk tablets to a tablet transportation system.
    Type: Application
    Filed: December 31, 2002
    Publication date: September 4, 2003
    Inventor: Dacheng Tian
  • System and method for removing particulate created from a drilled or cut surface
    Publication number: 20030150845
    Abstract: The subject invention is a system and method for receiving and collecting particulate matter from a drilled or cut surface and transporting said particulate to a remote location.
    Type: Application
    Filed: December 31, 2002
    Publication date: August 14, 2003
    Inventor: Dacheng Tian