	US 11,850,214 B2
	Antiviral compositions and devices and methods of use thereof
Bryan J. McEntire, Salt Lake City, UT (US); Ryan M. Bock, Salt Lake City, UT (US); and Bhajanjit Singh Bal, Salt Lake City, UT (US)
Assigned to SINTX Technologies, Inc., Salt Lake City, UT (US)
Filed by SINTX TECHNOLOGIES, INC., Salt Lake City, UT (US)
Filed on Apr. 14, 2021, as Appl. No. 17/230,402.
Application 17/230,402 is a continuation in part of application No. 16/550,605, filed on Aug. 26, 2019, granted, now 11,192,787.
Claims priority of provisional application 62/727,724, filed on Sep. 6, 2018.
Claims priority of provisional application 62/800,034, filed on Feb. 1, 2019.
Claims priority of provisional application 63/143,370, filed on Jan. 29, 2021.
Prior Publication US 2021/0228625 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 33/00 (2006.01); A61K 8/25 (2006.01); A61Q 11/00 (2006.01); A61P 31/16 (2006.01); A61L 2/23 (2006.01)

CPC A61K 33/00 (2013.01) [A61K 8/25 (2013.01); A61L 2/23 (2013.01); A61P 31/16 (2018.01); A61Q 11/00 (2013.01)]

13 Claims

1. An antiviral composition comprising silicon nitride powder at a concentration of 1 wt. % to 15 wt. %, wherein the powder has an average particle size of 0.6 μm to 5 μm, wherein the silicon nitride inactivates at least 99% of a human virus in contact with the composition for at least 30 minutes, and wherein the human virus is not SARS-CoV-2.