US 12,433,356 B2
Antipathogenic fibrous material
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 Jun. 13, 2022, as Appl. No. 17/839,063.
Application 17/839,063 is a continuation in part of application No. 17/230,284, filed on Apr. 14, 2021, granted, now 11,857,001.
Application 17/230,284 is a continuation in part of application No. 16/550,605, filed on Aug. 26, 2019, granted, now 11,192,787, issued on Dec. 7, 2021.
Claims priority of provisional application 63/009,842, filed on Apr. 14, 2020.
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.
Prior Publication US 2022/0322768 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/06 (2006.01); A41D 13/11 (2006.01); B32B 5/02 (2006.01); B32B 17/10 (2006.01); B32B 33/00 (2006.01)
CPC A41D 13/1192 (2013.01) [A61M 16/06 (2013.01); B32B 5/022 (2013.01); B32B 17/10798 (2013.01); B32B 33/00 (2013.01); B32B 2323/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A fibrous material comprising:
a fibrous material comprising silicon nitride powder embedded in at least a portion of a surface of the fibrous material, wherein the silicon nitride is present at a concentration of about 30 wt. % to about 50 wt. %;
wherein the fibrous material comprises spunbond nonwoven fabric;
wherein the silicon nitride powder has an average particle size of 0.6 μm to 5 μm; and
wherein the silicon nitride inactivates a pathogen in contact with the surface of the fibrous material.