US 12,419,817 B2
Oral care compositions and methods of use
Aarti Rege, East Windsor, NJ (US); Michael Prencipe, West Windsor, NJ (US); Paul Thomson, Piscataway, NJ (US); and Rehana Begum-Gafur, Clifton, NJ (US)
Assigned to Colgate-Palmolive Company, New York, NY (US)
Filed by Colgate-Palmolive Company, New York, NY (US)
Filed on Nov. 14, 2023, as Appl. No. 18/508,746.
Application 18/508,746 is a continuation of application No. 17/249,579, filed on Mar. 5, 2021, granted, now 11,813,342, issued on Nov. 14, 2023.
Application 17/249,579 is a continuation of application No. 16/841,735, filed on Apr. 7, 2020, granted, now 10,966,910, issued on Apr. 6, 2021.
Application 16/841,735 is a continuation of application No. 15/848,009, filed on Dec. 20, 2017, granted, now 10,646,420, issued on May 12, 2020.
Claims priority of provisional application 62/437,091, filed on Dec. 21, 2016.
Prior Publication US 2024/0074955 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/24 (2006.01); A61K 8/20 (2006.01); A61K 8/21 (2006.01); A61K 8/27 (2006.01); A61Q 11/00 (2006.01)
CPC A61K 8/24 (2013.01) [A61K 8/20 (2013.01); A61K 8/21 (2013.01); A61K 8/27 (2013.01); A61Q 11/00 (2013.01)] 18 Claims
 
1. An oral care composition comprising:
a zinc source;
a first source of stannous, wherein the stannous comprises stannous fluoride;
a second source of stannous, wherein the second source of stannous comprises stannous pyrophosphate;
a citrate buffer system, wherein the buffer system comprises tri-sodium citrate and citric acid; and
a thickening agent selected from the group consisting of carboxyvinyl polymers, hydroxyethyl cellulose, sodium carboxymethyl cellulose, sodium carboxymethyl hydroxyethyl cellulose, and a combination of two or more thereof.