Patents by Inventor Charles J. Howell

Charles J. Howell 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).

  • Dentifrice
    Patent number: 3962417
    Abstract: An effervescent dentifrice in chewable tablet form particularly effective in controlling Bacillus Acidophilios comprising a compressed homogenous mixture of an acid neutralizer, a cariespreventative, an acid, a wetting agent, and flavoring and sweetening agents. Upon crushing the dentifrice tablet in the mouth, a pleasant-tasting, effective microbicide is released.
    Type: Grant
    Filed: March 27, 1974
    Date of Patent: June 8, 1976
    Inventor: Charles J. Howell