Patents by Inventor Fang-Yu Lee

Fang-Yu Lee 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).

  • Patent number: 6262072
    Abstract: The invention provides three orally administered ciprofloxacin formulations: The first formulation comprises 60-75 wt % of ciprofloxacin or at least one of pharmacologically acceptable salt; 0.3-10 wt % of pregelatinized starch as binder; 5-30 wt % of lactose as diluent; 1-10 wt % of sodium starch glycolate as disintegrant; and 0.5-2 wt % of magnesium stearate as lubricant. The second formulation comprises 60-75 wt % of ciprofloxacin or its pharmacologically acceptable salt; 1-5 wt % of polyvinyl pyrrolidone as binder; 5-30 wt % of lactose as diluent; 1-10 wt % of sodium starch glycolate as disintegrant; and 0.5-2 wt % of magnesium stearate as lubricant. The third formulation comprises 60-75 wt % of ciprofloxacin or at least one of pharmacologically acceptable salt; 1-8 wt % of polyvinyl alcohol as binder; 5-30 wt % of lactose as diluent; 1-10 wt % of sodium starch glycolate as disintegrant; and 0.5-2 wt % of magnesium stearate as lubricant.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 17, 2001
    Assignee: Yung Shin Pharmaceutical Industrial Co. Ltd.
    Inventor: Fang-Yu Lee
  • Patent number: 6228400
    Abstract: The present invention provides pharmaceutical formulations which contain (a) an inert core of sugar, sugar and starch, or microcrystalline cellulose, (b) a drug emulsion layer which is made from mixing a free base of benzimidazole derivative (such as omeprazole or lansoprazole) with a nonionic surfactant and water, (c) a protective coating which is made of a film-forming compound, and optionally a plasticizer or excipient, and (d) an enteric coating which is made of a pharmaceutically acceptable polymer and a plasticizer. Optionally, a basic amino acid can be added to the drug emulsion layer or the protective coating. The present invention also provides the method for making the pharmaceutical formulations.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: May 8, 2001
    Assignee: Carlsbad Technology, Inc.
    Inventors: Fang-Yu Lee, Shan-chiung Chen, Han-Chiang Kuo
  • Patent number: 6168806
    Abstract: The present invention relates to a fast-release as well as a prolonged release type of nifedipine pellets and the process for the preparation thereof. The fast-release type of nifedipine pellets comprises a particulate core which is covered by a nifedipine coating layer. The particulate core comprises water-soluble or water-insoluble excipient(s) and a pharmacologically acceptable carrier. The nifedipine coating layer comprises an effective amount of nifedipine dissolved in organic solvent(s). This nifedipine coating layer can further be mixed with a suspension which comprises an adhesive, an emulsifier, and a dispersant. The preferred composition of the fast-release type of nifedipine includes 20-70% of the particulate core, 3-15% of nifedipine, 1-20% of emulsifier, 1-20% of adhesive, and 1-30% of dispersant.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: January 2, 2001
    Inventors: Fang-Yu Lee, Shan-Chiung Chen, Han-Chiang Kuo
  • Patent number: 5574168
    Abstract: The invention pertains to a process for preparing (1-substituted benzyl)-3-(hydroxy-carbonyl aryl) condensed pyrazoles or (1-substituted benzyl)-3-(hydroxymethyl aryl) condensed pyrazoles comprising the steps of: (a) reacting compound I and compound II, or compound III and compound IV, to produce compound V, which is a substituted aryl ketone, as follows: ##STR1## wherein Ar.sub.2 and At.sub.3 can be, independently, ##STR2## R.sub.1 is H, C.sub.1-3 alkyl, or X (halogen), R.sub.3 is H, C.sub.1-3 alkyl, X (halogen), or --OR radical, and R is H or C.sub.1-3 alkyl; the process comprising the following steps of: R.sub.2 represents CH.sub.2 OR, H, COOR, C.sub.1-3 alkyl, or X (halogen); (b) reacting the compound V with a hydrazine compound to form a hydrazone compound; (c) reacting the hydrazone compound compound with trifluoride etherate (BF.sub.3 .cndot.Et.sub.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: November 12, 1996
    Assignee: Yung Shin Pharm. Ind. Co., Ltd.
    Inventors: Sheng-Chu Kuo, Fang Yu Lee, Che-Ming Teng