Patents by Inventor Xiufang Cheng

Xiufang 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).

  • Controlled Release Particulates Containing Water-Insoluble Drug
    Publication number: 20100239681
    Abstract: A pharmaceutical composition. The composition has a plurality of controlled release particulates. Each particulate includes a coating layer and a core partially coated with the coating layer, in which the core contains a water-insoluble drug 5-80 wt. % and a first polymer 0.2-80 wt. % and the coating layer contains the water-insoluble drug 0-50 wt. % and a second polymer 0.2-50 wt. %. Each of the first and second polymers, independently, is a water-insoluble polymer, an enteric polymer, or a combination thereof. A method of making the composition is also disclosed herein.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Applicant: Biokey, Inc.
    Inventors: David Wong, Xiufang Cheng, San-Laung Chow
  • Controlled release tamsulosin hydrochloride formulation
    Publication number: 20090004284
    Abstract: The present invention relates to a controlled release pellet of tamsulosin and its pharmaceutically acceptable salts that comprise an inert starting seed or core.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Inventors: Xiu Xiu Cheng, Xiufang Cheng