Patents by Inventor Chein-Hsuan Han

Chein-Hsuan Han 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).

  • Pulsatile gastric retentive dosage forms
    Publication number: 20090028941
    Abstract: Dosage forms for delayed and pulsed release of therapeutic agents into the stomach are described. The dosage forms are gastric retentive dosage forms that achieve release of the therapeutic agent into the stomach and upper gastrointestinal tract subsequent to administration of the dosage form. The dosage forms find particular use in administration of acid-labile active agents such as proton pump inhibitors, and in treating gastric acid secretion such as gastro-esophageal reflux disease (GERD) and nocturnal acid breakthrough (NAB).
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Applicant: Depomed, INC.
    Inventors: Verne Earle Cowles, Sui Yuen Eddie Hou, Bret Berner, Chein-Hsuan Han, Ryan Douglas Fell, Chunhong Gu