Patents by Inventor Dianne P. Leipold

Dianne P. Leipold 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).

  • Bactericidal toothpastes
    Patent number: 4584189
    Abstract: Disclosed are dentifrice compositions comprising a cationic bactericide, water, a dental abrasive, and a hydrophobically modified hydroxyethyl cellulose thickener.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: April 22, 1986
    Assignee: Hercules Incorporated
    Inventor: Dianne P. Leipold
  • Gel toothpastes
    Patent number: 4485089
    Abstract: Disclosed are transparent dentifrice compositions comprising a humectant, a vehicle for the humectant, a finely divided dental abrasive, a silica thickener, and a hydrophobically modified hydroxyethyl cellulose thickening and gelling agent.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: November 27, 1984
    Assignee: Hercules Incorporated
    Inventor: Dianne P. Leipold
  • Stabilized fruit suspensions and method for preparing the same
    Patent number: 4370354
    Abstract: A fruit suspension which contains a mixture of from 70% to 30% low methoxyl pectin and from 30% to 70% xanthan based on the total weight of gum added, preferably a 50:50 mixture, is effectively stabilized. Such a mixture is particularly useful in stabilizing the fruit suspension employed in sundae style yogurts because it eliminates problems with unwanted gelatin and fruit float.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: January 25, 1983
    Assignee: Hercules Incorporated
    Inventor: Dianne P. Leipold