	US 12,378,154 B1
	Ceramic additive formulation and method of making
Alvin Lamar Campbell, Jr., Huntersville, NC (US); and Nathan L. Fields, Concord, NC (US)
Assigned to MICROBAN PRODUCTS COMPANY, Huntersville, NC (US)
Filed by Microban Products Company, Huntersville, NC (US)
Filed on Sep. 18, 2023, as Appl. No. 18/369,348.
Application 17/124,104 is a division of application No. 15/064,781, filed on Mar. 9, 2016, granted, now 10,899,657, issued on Jan. 26, 2021.
Application 18/369,348 is a continuation of application No. 17/124,104, filed on Dec. 16, 2020, granted, now 11,767,256.
This patent is subject to a terminal disclaimer.
Int. Cl. C03C 8/18 (2006.01); C03C 8/02 (2006.01); C03C 8/04 (2006.01)

CPC C03C 8/18 (2013.01) [C03C 8/02 (2013.01); C03C 8/04 (2013.01); C03C 2204/02 (2013.01); C03C 2209/00 (2013.01)]

13 Claims

1. An glazed ceramic article comprising a ceramic glaze additive formulation applied thereon, wherein the ceramic glaze additive formulation comprises a fritted antimicrobial composition comprising an antimicrobial selected from the group consisting of bismuth oxide, zinc oxide and a combination thereof, and a silver carrier in a glass matrix, wherein bismuth oxide is present in the ceramic glaze additive formulation in a range of 89% to 96% by weight, based upon the weight of the ceramic glaze additive formulation.