Patents by Inventor Dong Woo Park

Dong Woo Park 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).

  • Enteric coated microgranules for stabilizing lactic acid bacteria
    Patent number: 6365148
    Abstract: The present invention relates to an enteric coated granule prepared by coating lactic acid bacteria-containing seed with a water-miscilble coating material and then, if desired, subjecting the first coated product to the second coating with a controlled-release coating material.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: April 2, 2002
    Assignee: Il Yang Pharm. Co., Ltd.
    Inventors: Dong Yeun Kim, Dong Woo Park, Hong Ryeol Jeon
  • Optimally stabilized microgranule comprising 5-pyrrolyl-2-pyridylmethylsulfinylbenzimidazole derivative
    Patent number: 6280773
    Abstract: The present invention relates to a microgranule prepared by using an alkali compound as a stabilizer for a 5-pyrrolyl-2-pyridylmethylsulfinylbenzimidazole derivative having the following formula (1), which is a very effective antiulcerative but highly unstable under acidic conditions, and by using a water-soluble polymer as a binding agent. in which X, R1, R2, R3, R4 and R5 are defined as described in the specification.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: August 28, 2001
    Assignee: IL Yang Pharm. Co., Ltd.
    Inventors: Kil Do Cho, Dong Yeun Kim, Dong Woo Park, Hong Ryeol Jeon, Hee Jun Kim