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IC:A62B23/02 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

1.20200376305PERSONAL PROTECTIVE EQUIPMENT SYSTEM FOR SAFE AIR, TRAIN OR BUS TRAVEL PROTECTING AGAINST INFECTIOUS AGENTS INCLUDING NOVEL CORONAVIRUS - COVID-19
US 03.12.2020
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 16933935 Applicant Noah Lang Inventor Noah Lang

Aspects of the invention relate to personal protection systems against COVID-19 including face masks and methods, systems or devices of managing, regulating and/or filtering airflow during travel on an aircraft, train, or bus.

2.WO/2008/145175BREATHING MEANS
WO 04.12.2008
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 PCT/EP2007/055138 Applicant NM TECH NANOMATERIALS MICRODEVICE TECHNOLOGY LTD. Inventor DELLA VALLE, Renato Ambrogio
A Breathing device (10; 30; 50; 60; 80) comprises mask means (11; 31; 61; 81) suitable for being applied to a face of a user, connecting means (12, 14, 16, 17; 32, 32a, 34, 36) protruding form said mask means (11; 31; 61; 81) and arranged for keeping said mask means (11; 31; 61; 81) in contact whit said face, said mask means (11; 31; 61; 81) being provided with purifying means (18, 19, 20; 38, 39, 40, 43; 38, 39, 51; 61, 69; 90, 91, 92) arranged for purifying a stream of air passing through said purifying means (18, 19, 20; 38, 39, 40, 43; 38, 39, 51; 61, 69; 90, 91, 92) , and it is characterised in that said purifying means (18, 19, 20; 38, 39, 40, 43; 38, 39, 51; 61, 69; 90, 91, 92) is provided with a nanomaterial product comprising a compound having the general formula AOx- (L-Men+)i; filtering means (18, 19, 20; 38, 39, 40, 43; 38, 39, 51, 55; 61, 69; 90, 91, 92) for a breathing device 10; 30; 50; 60; 80) provided with purifying means (18, 19, 20; 38, 39, 40, 43; 38, 39, 51; 61, 69; 90, 91, 92) containing a nanomaterial product comprising a compound having the general formula AOx- (L-Men+)i, in which AOx is a metal or metalloid oxide in which x indicates the number of the Oxygen atom(s) (O) bound to the metal (A) atom; Men+ is a metal ion; L is a bifunctional molecule that could bind both metal oxide or metalloid oxide (AOx) and the metal ion (Men+) , and i is a parameter indicating the number of (L-Men+) groups bound to the metal oxide AOx.
3.WO/2016/101848PROTECTIVE MASKS WITH COATING COMPRISING DIFFERENT ELECTROSPUN FIBERS INTERWEAVED WITH EACH OTHER, FORMULATIONS FORMING THE SAME, AND METHOD OF PRODUCING THEREOF
WO 30.06.2016
Int.Class B01D 39/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
Appl.No PCT/CN2015/097936 Applicant PROFIT ROYAL PHARMACEUTICAL LIMITED Inventor TONG, Ho Wang
A protective mask comprises an ultrafine fibrous coating comprising partially gelled submicron fibers interweaved with nanofibers and a biocide encapsulated in, surface-attached onto, blended with, physically trapped, and/or chemically linked to said submicron fibers and nanofibers. In an example, a microfibrous substrate with the coating assembles with other microfibrous substrates to form a protective mask having N95 level of protection and bacteria-killing capability.
4.20050079379Enhancement 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.

5.210542952Air-entraining type positive pressure hood device for protecting novel coronaviruses
CN 19.05.2020
Int.Class A62B 18/04
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes
04Gas helmets
Appl.No 202020277684.0 Applicant REN JIACHENG Inventor REN JIACHENG
The utility model relates to an air-entraining type positive pressure hood device for protecting novel coronaviruses. According to the utility model, the totally-enclosed air supply hood is adopted toenclose the whole head, so that the propagation path is thoroughly cut off, and viruses can enter seamlessly. And viruses can be slack without wearing a mask. The survival time of the coronavirus inthe air is short; aerial air flow, sunlight irradiation and other reasons, viruses in the air are extremely rare; air is introduced from the air by using an air floating filter or a rigid air inlet pipe, fresh air far away from virus pollution is collected by using an air delivery pump, then filtered clean air is delivered to each branch, and one or more long air delivery hoses with air buoys aredistributed to each branch as required to lead to a hood for air supply, so that a fresh and clean air source is guaranteed. The long flexible air pipe with the buoy can realize that the pipeline is suspended and moves in a pipe length range along with people, so that the defects of easiness in abrasion, treading and the like caused by floor mopping movement of the pipeline are avoided, and the air supply along with the people is realized.
6.20100269832Complex respirator
US 28.10.2010
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 11503075 Applicant Lin Jing-Jyr Inventor Lin Jing-Jyr

A complex respirator is provided that includes a first shell, at least a first filter layer and a second filter layer. The first filter layer is replaceable and arranged on an outer side of the first shell while the first shell is disposed on an outer side of the second filter layer. A slot is formed on an outer side of the first shell for accommodating the first filter layer. The filtering area of the first filter layer is smaller than that of the second filter layer while pore size of the first filter layer is larger than that of the second filter layer. The second filter layer filters the gas that the first filter layer is unable to filter. Moreover, the type of first filter media of the first filter layer may be chosen based on the location that the complex respirator is to be used.

7.2584858Assembled respirator
GB 23.12.2020
Int.Class A62B 18/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes
02Masks
Appl.No 201908661 Applicant LIN PIN CHEN Inventor LIN-PIN CHEN
An assembled respirator comprising a facepiece 1 made of a flexible plastic, an exhalation valve 3, two intake filter cartridges 2, and a facepiece lining 4, a connecting aperture 11 located at the centre front of the facepiece, and another two connecting orifices 12 located on the sides of the facepiece. Filter cartridges and the exhalation valve may form snap-fit connections with the mask, allowing components to be easily individually replaced or manufactured to specification. A hinge 235 may be fitted between the two air filters on the mask, allowing them to pivot with respect to one another.
8.20070095348PARTICULATE BLOCKING OXYGEN DELIVERY MASK
US 03.05.2007
Int.Class A62B 23/00
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
Appl.No 11461291 Applicant FISHER JOSEPH Inventor Fisher Joseph

A particulate blocking oxygen delivery mask includes a face piece constructed at least partially of a filtering material, a securing member such as a strap attached to the face piece, and an gas entry port disposed on the face piece. The gas entry port may include an optional one-way valve. The mask may be coupled to a continuous flow of oxygen or may be used as a partial or non-rebreathing mask. The mask permits the administration of high concentrations of oxygen to the patient while at the same time isolating the patient from any potentially contagious airborne particles in their surroundings. It also isolates any potentially contagious droplets or aerosolized particulate matter exhaled by a patient from entering the environment and potentially infecting others.

9.20050194010Disposable contagion transmission prevention device and method of using a disposable contagion transmission prevention device
US 08.09.2005
Int.Class A62B 18/08
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes
08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
Appl.No 10793012 Applicant SANKOT PHILIP W. Inventor Sankot Philip W.

A disposable personal contagion transmission prevention device for preventing transmission of airborne contagions may include a device body having an exterior and interior surface and shaped so as to provide a sealing fit over the bridge of a user's nose, extending downward along the cheek lines beneath the user's chin so as to sealingly enclose a user's mouth and nose within an interior cavity formed by the device body over the face. The device body may also include a bulbous protrusion that is contiguous with the device body and extends outward from the device body to provide a handhold for facilitating the placing of the device body over and against the nose bridge, cheeks and chin of the user. The interior surface of the device body with bulbous protrusion may include an absorbent fibrous material that entrains fluids and particulate that may be forcefully expelled from the user.

10.20050103344Mask ear loop holding device
US 19.05.2005
Int.Class A62B 18/08
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes
08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
Appl.No 10950527 Applicant Center Healthcare Technology Co., Ltd. Inventor Cheng Yung-Chu

A mask ear loop holding device includes a holding plate provided with at least one loop holder for engaging with two ear loops of a mask worn on a user's face, so as to hold the ear loops to a rear side of the user's head to minimize frictional contact of the ear loops with the user's ears, making the mask more comfortable for wearing.