Patents by Inventor Yun-Tsu Chen

Yun-Tsu Chen 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: 4548809
    Abstract: A method for manufacturing a stomatic gargle, which is prepared with three kinds of liquids, i.e., liquid A made of very small quantities of menthol, eugenol and eucalyptus oil which are dissolved in ethyl alcohol; liquid B made of licorice extract dissolved in a warm distilled water; liquid C made of sodium monofluorophosphate and sodium fluoride added to distilled water at a temperature of 30.degree. C. with agitation. The liquid C is added to liquid B, a very small quantity of glycerol, perfume, non-ionic surfactant and sodium dehydroacetate, and are agitated at a low speed for 3 to 7 minutes. A very small quantity of perfume and flavor additives is then added. Then slowly liquid A is added to the mixed liquid with distilled water, ethylalcohol and a very small quantity of chlorophyll so as to obtain a transparent and green gargle.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: October 22, 1985
    Inventors: Paul S. T. Fung, Yun-Tsu Chen