Patents by Inventor Lawrence C. H. Wang

Lawrence C. H. Wang 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).

  • Compositions and methods for improving cold tolerance in animals and humans
    Patent number: 5296463
    Abstract: The invention disclosed is a composition for improving cold tolerance in animals and humans, comprising an adenosine receptor antagonist or an adenosine de-activator. Preferably, a nutritional supplement is also provided which further enhances cold tolerance. The nutritional supplement includes various combinations and amounts of carbohydrate, protein and fat.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: March 22, 1994
    Assignee: University of Alberta
    Inventors: Tze-Fun Lee, Lawrence C. H. Wang
  • 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