Patents by Inventor Hsing J. Liu

Hsing J. Liu 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).

  • Composition and method for treatment of senile dementia
    Patent number: 5137878
    Abstract: Ginsenosides Rb.sub.1 and Rg.sub.1 enhance the availability of acetylcholine in the cortical and hippocampal regions of the brain and alleviaate the symptoms of Alzheimer-type senile dementia. The Rb.sub.1 or Rg.sub.1 may be administered together with a metabolic precursor for acetylcholine and/or with a cholinesterase inhibitor.Pure Rb.sub.1 is located from a mixture of ginsenosides by a process involving vacuum chromatography on silica gel. Preferably, the mixture of ginsenosides is enriched in Rb.sub.1 by partition between an aqueous system and water ethyl acetatebutanol.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: August 11, 1992
    Inventors: Peter K. T. Pang, Lawrence C. H. Wang, Christina G. Benishin, Hsing J. Liu
  • Method for treatment of senile dementia
    Patent number: 4966893
    Abstract: Ginsenosides Rb.sub.1 and Rg.sub.1 enhance the avaiability of acetylcholine in the cortical and hippocampal regions of the brain and alleviate the symptoms of Alzheimer-type senile dementia.Pure Rb.sub.1 is isolated from a mixture of ginsenosides by a process involving vacuum chromatography on silica gel. Preferably, the mixture of ginsenosides is enriched in Rb.sub.1 by partition between an aqueous system and water ethyl acetatebutanol.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: October 30, 1990
    Inventors: Peter K. T. Pang, Lawrence C. H. Wang, Christina G. Benishin, Hsing J. Liu