国家/地区 中国（14） 世界知识产权组织（9） 美国（7） 日本（5） 加拿大（4） 欧洲专利局（EPO）（3） 澳大利亚（2） 印度（2） 韩国（2）
IPC部 A（21）
IPC大类 B01（21）
IPC小类 B01D（21）
IPC B32B009/00（13） B32B009/04（11） B32B005/02（8）
A41D013/11（5） B01D046/00（5） B32B005/26（5）
B32B033/00（5） B01D039/16（4） B01D053/02（4）
A61L009/00（3） A62B023/02（3） B01D039/08（3）
B01D039/14（3） B01D067/00（3） B01D071/02（3）
发明人 CHOI K（2） HEIGHT M（2） PARK H（2）
PARK H G（2）
公开年 2021（9） 2022（4） 2017（3） 2020（2）
申请年 2021（9）  2020（6）  2016（4） 
专利权人 HEIQ MATERIA.（2）

Combination of nanoparticles applied onto mask filtration system for filtering airborne pollutants comprising PM2.5 and aerosolized virus particles of severe acute respiratory syndrome-coronavirus disease, comprises graphene, titanium dioxide, zinc oxide, copper oxide, silicon dioxide, and solvent.

NAG I

Mask for use in respiratory protection for various diseases, has mask body that covers user's mouth and nose when worn by user, and wearing strap that is connected to both sides of mask body.

PARK S A

Glass fiber air filter material used for purifying air in automobiles, comprises modified nonwoven fabric and glass material fiber from bottom to top, formed into composite by hot-pressing.

ZHANG Z, JIA G, YANG P

Sanitizing device used to purify and sanitize air of spaces from germs or microorganisms, comprises micro-perforated film provided on first side with adhesive layer and on second side with photocatalytic layer based on titanium dioxide.

ZAT F, ALLEGRANZI C, VERDI M, TOMASELLA L

Air filter cloth for air purifying device for filtering and purifying micro-particles in air, has adsorption layer composed of transverse first aramid filament and longitudinal second filament knitted with each other.

CAO W

Environment-friendly furniture composite board, has wrapping clamped and connected with clamping groove on plate main body through splicing strip, and adsorption filling layer filled between wrapping edge and side wall of plate body.

HE R

Filter used in device e.g. mask, breathing apparatus and face covering, vent cover and heating, ventilation, has polyurethane-based polymer foam comprising virucidal/bactericidal agent having cetylpyridinium chloride and/or dimethyloctadecyl(3-(trimethyloxysilyl)propyl)ammonium chloride.

RAMAPPA D A, JOGIKALMATH G

Multi-layered mask is useful for e.g. protecting against the aerosol transmission of COVID-19 comprises five layers characterized that first and last layers are made of e.g. cotton textile layers, natural fiber layers, and nanofibers layer.

SHIREESHA G, KARBARI S R, UTTARA K M, SUBRAMANYA K

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Diatom cloth with antibacterial, purifying and humidifying function comprises diatom material, activated carbon, graphene, catalyst, pore-forming agent and cloth.

HAN F, DU Z