Patents by Inventor Bernard Monnerat

Bernard Monnerat 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).

  • Toothpaste permitting of controlling the tooth brushing time
    Patent number: 4150106
    Abstract: This toothpaste contains reagents for controlling the tooth brushing time by the change in color occurring after a predetermined brushing time. It contains essentially a citrate/citric acid buffer having a molarity of 0.07 to 0.35 M and a pH of 4 to 5.5 in the proportion of 10 to 50%, and chlorophenol red in the proportion of 0.02 to 0.1%.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: April 17, 1979
    Assignee: Cooper S.A.
    Inventors: Jacques Assal, Bernard Blanc, Bernard Monnerat