Patents by Inventor Shu-Sing Cheng

Shu-Sing Cheng 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).

  • Denture cleanser
    Patent number: 3936385
    Abstract: Effervescent denture cleanser having excellent plaque-removing properties. It comprises a source of free chlorine, such as a dichloroisocyanurate, and a peroxygen compound effervescently reactive therewith in water, so as to give a denture soaking solution containing at least 100 ppm active chlorine and having a pH of at least about 9, preferably at least 10, and more preferably about 10.6 to 11.5.
    Type: Grant
    Filed: August 9, 1973
    Date of Patent: February 3, 1976
    Assignee: Colgate-Palmolive Company
    Inventor: Shu-Sing Cheng