国家/地区 世界知识产权组织（7） 中国（6） 美国（5） 欧洲专利局（EPO）（4） 日本（3） 韩国（3） 加拿大（2） 台湾（2）
IPC部 A（15）
IPC大类 A62（15）
IPC小类 B01D（15）
IPC B01D039/16（8） A41D013/11（7） A62B023/02（7）
B01D039/20（5） B01D046/00（5） A62B018/02（4）
B01D039/08（4） B01D053/86（3） B32B005/26（3）
A41D031/30（2） A62B018/08（2） B01D067/00（2）
B01D069/12（2） B32B005/02（2） D01D005/00（2）
发明人 CESAREO G G（2） RIZZI L G（2）
公开年 2021（9） 2022（3） 2023（3）
申请年 2021（15）
专利权人 DIRECTA PLUS.（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

Wireless rechargeable and portable anti-microbial respirator for healthcare practitioners, has rechargeable battery for providing power for electric motor, and wireless power transfer receiving apparatus for receiving wireless power from battery.

DENG W, YE R, WANG S

Use of functional plastic comprising carbon nitride and its composite and thermoplastic for producing plastic articles by plastic processing, for catalytic degradation of gas phase substance ethylene and liquid phase substance rhodamine B.

WAN W, LI P, LIU S, LI W, ZHAO Z

Self-cleaning filter used as mask, comprises heating fiber containing heating carbon component.

KIM S, JUNG H J, JAE C H

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

Filter material, useful in face mask and/or respirator, comprises electrospun nanofiber membrane and active nanomaterial agent incorporated into the membrane, where the membrane filters disease-causing agents.

HASAN S W, MAVUKKANDY M

Textile article, useful in a filter for personal health protection, comprises a textile substrate having specific bacterial filtration efficiency, where the textile article comprises graphene dispersed in a polymeric binder.

CESAREO G G, RIZZI L G

Increasing an electrical and/or thermal conductivity, as well as filtering power and germ-blocking properties of textile article by preparing impregnation composition consisting of graphene, polymeric binder and wetting agent, and stirring.

CESAREO G G, RIZZI L G

Producing selective permeable separation membrane, comprises e.g. preparing carbon material dispersion, forming carbon-based support by using carbon material, and forming a separation layer on carbon based support by modifying surface of separation layer.

CHO K M, JIN Y, KA D, JOUNG H

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