Patents by Inventor Zhao-Qi Shi

Zhao-Qi Shi 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).

  • Hardening agent for affected tissues of the digestive system
    Patent number: 5470589
    Abstract: The hardening agent contains a composition comprised of tannic acid and potassium aluminium sulfate in a ratio of tannic acid to potassium aluminium sulfate ranging from 10 to 1 to 1 to 50 and a stabilizing agent extracted from crude drugs of plants containing a phenol, flavon, flavonoid, catechin or a polycarboxylic acid.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: November 28, 1995
    Assignee: Traditional Chinese Medicine Research Laboratory, Inc.
    Inventor: Zhao-Qi Shi
  • Hardening agent for affected tissues of the digestive system
    Patent number: 5252344
    Abstract: The hardening agent contains a composition comprised of tannic acid and potassium aluminum sulfate in a ratio of tannic acid to potassium aluminum sulfate ranging from 10 to 1 to 1 to 50 and a stabilizing agent extracted from crude drugs of plants containing a phenol, flavon, flavonoid, catechin or a polycarboxylic acid.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: October 12, 1993
    Assignee: Traditional Chinese Medicine Research Laboratory, Inc.
    Inventor: Zhao-Qi Shi