Patents by Inventor Sigrid Stiller

Sigrid Stiller 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).

  • Compositions
    Patent number: 5628985
    Abstract: A transparent liquid dentifrice which comprises a particulate silica abrasive material present in from 10 to 15% by weight of the composition, stably suspended in an aqueous liquid vehicle with the aid of a suspending agent; and a humectant system which consists essentially of sorbitol, present in from 50 to 55% by weight of the composition (measured as the 100% active), and polyethylene glycol with average molecular weight in the range 200 to 600, present in from 0.5 to 3% by weight of the composition.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: May 13, 1997
    Assignee: Lingner & Fischer GmbH
    Inventors: Sigrid Stiller, Gertrud Kawa