Patents by Inventor Lisa Catron Ernst

Lisa Catron Ernst 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).

  • Denture adhesives with mixed salt copolymers of terpolymers
    Patent number: 6355706
    Abstract: The present invention relates to a denture adhesive composition comprising mixed salts of an alkyl vinyl ether-maleic acid copolymer wherein the mixed salt contains a cationic salt function comprising from about 5% to about 50% zinc cations; from 0% to about 2.5% of a cation selected from the group consisting of iron, boron, aluminum, vanadium, chromium, manganese, nickel, copper, yttrium, titanium, and mixtures thereof; from about 30% to about 60% free acid component; an effective adhesive amount of magnesium cations; and an effective adhesive amount of a cation selected from the group consisting of calcium, strontium, and mixtures thereof; wherein the total level of magnesium, calcium and strontium is from about 5% to about 65%. In addition the present invention relates to denture adhesive compositions comprising the above composition and at least one non-adhesive self-supporting layer.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: March 12, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Jayanth Rajaiah, Carole Ann Schumacher, John Roy Whitney, Kimberly Ann Gilday-Weber, Lisa Catron Ernst