Patents by Inventor Violet Y. Chen

Violet Y. 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).

  • Microparticulate abrasives
    Patent number: 5855869
    Abstract: A microparticulate abrasive composition is comprised of chilsonated granules of a low oil absorption compound selected from the group consisting of sodium tetrapyrophosphate, dicalcium phosphate dihydrate, anhydrous dicalcium phosphate, and mixtures thereof. The abrasive composition is useful as a polishing agent and plaque and tartar removing agent in oral dentifrice compositions such as toothpastes, as well as a soft scrubbing agent for delicate hard surfaces, facial masks, and body soaps.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: January 5, 1999
    Assignee: Rhodia Inc.
    Inventors: Todd William Domke, Carolyn Green, Nano Mardones, Violet Y. Chen