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IC:A62D9/00 AND EN_ALLTXT:(coronavirus OR coronaviruses OR coronaviridae OR coronavirinae OR orthocoronavirus OR orthocoronaviruses OR orthocoronaviridae OR orthocoronavirinae OR betacoronavirus OR betacoronaviruses OR betacoronaviridae OR betacoronavirinae OR sarbecovirus OR sarbecoviruses OR sarbecoviridae OR sarbecovirinae OR "severe acute respiratory syndrome" OR sars OR "2019 ncov" OR covid)

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Analysis

1.20050079379Enhancement of barrier fabrics with breathable films and of face masks and filters with novel fluorochemical electret reinforcing treatment
US 14.04.2005
Int.Class A62B 7/10
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
7Respiratory apparatus
10with filter elements
Appl.No 10915808 Applicant University of Tennessee Research Foundation Inventor Wadsworth Larry C.

A respirable one-ply, two-ply or multi-ply barrier fabric including one web comprising an electrostatically charged melt blown fibers nonwoven or a nanofiber/melt blown fibers nonwoven having a weak cationic emulsifier to reduce surface energy of the fibers so as to minimize penetration and wetting by oily mists and to thereby preserve the effectiveness of electrostatic charges applied to fibers. Also disclosed is a two-layer or multi-ply barrier fabric which has at least one barrier fabric layer which is impermeable to liquids such as water and body fluids, but which allows the transport of moisture vapor through the micropores or by chemical absorption of water through a monolithic membrane, which may have additional barrier layers to include melt blown and nanofiber/melt blown composites. One or more layers of the respirable barrier fabric or the moisture transporting microporous (MP) or monolithic (ML) films or combination thereof may contain an antimicrobial agent, fluorochemical or other protective finish, as well as any of the layers of the respirable filter fabric or any of the layers of the filter ensemble as well as any layer of the liquid barrier moisture transporting barrierfabrics. Furthermore, the protective fabrics may contain a porous or absorbent fabric or film on the body side for enhanced thermal comfort, and other additives may be included in the fabric ensembles such as activated carbon particles, or activated carbon particles, or other sorbents, or superabsorbents o to absorb odors or toxic chemicals.

2.20220296949CARBON-BASED FILTERS FOR USE IN ELIMINATING PATHOGENS
US 22.09.2022
Int.Class A62D 9/00
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
9Composition of chemical substances for use in breathing apparatus
Appl.No 17655688 Applicant University Of Cincinnati Inventor Vesselin N. Shanov

The present invention relates to a carbon-based material for use in a piece of personal protective equipment and an air filtration system. The carbon-based material may function as a filter by providing a tortuous path for a pathogen to traverse. The carbon-based material may be used as a carbon-based heater that can reach a pathogen inactivation threshold temperature to enable heat inactivation of one or more pathogens. In embodiments where a piece of personal protective equipment includes a carbon-based heater, an insulating layer may be included to attenuate the temperature generated by the carbon-based heater from the face of a user.

3.20120192876Mask
US 02.08.2012
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 13395670 Applicant Yoshie Fujimori Inventor Yoshie Fujimori

A mask is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The mask can inactivate viruses adhering thereto and includes a mask body provided with a member used when the mask is worn and virus inactivating fine particles having a virus inactivating ability and held by the mask body. The virus inactivating fine particles are particles of at least one selected from the group consisting of platinum(II) iodide, palladium(II) iodide, silver(I) iodide, copper(I) iodide, and copper(I) thiocyanate.

4.20220193468FIBRE FILTER AND METHOD OF MANUFACTURE THEREOF
US 23.06.2022
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 17131721 Applicant Owners Capital GmbH Inventor Michel Gschwendtner

There is disclosed a fibre filter (10) for filtering a flow of gas therethrough, wherein the fibre filter (10) includes a fibre felt (30) including at least one fibre (20) that is matted together, wherein the at least one fibre (20) is manufactured from a plastics material that includes integrally therein a disinfecting agent that inhibits activity of microbes that are deposited on the at least one fibre (20) when the flow of gas occurs through the fibre filter (10). The fibre filter (10) is susceptible to being used in face masks (50) and air filters (150) of air-conditioning units, although many other uses are feasible.

5.20210322802Pathogen-killing filter assemblage
US 21.10.2021
Int.Class A62B 23/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
02for respirators
Appl.No 17232081 Applicant KJR Materials Technology Consulting LLC Inventor Kenneth J. Reed

A filter configured for capturing and killing pathogens, the filter including a first breathable layer including copper; and a second breathable layer including silver, the second breathable layer coupled to the first breathable layer, wherein the first breathable layer and the second breathable layer cooperate to capture and kill pathogens mobilized through at least one of the first breathable layer and the second breathable layer.