国家/地区 中国（8） 世界知识产权组织（7） 韩国（5） 美国（5） 欧洲专利局（EPO）（3）
IPC部 B（20） A（9） D（6）
C（5）
IPC大类 B01（20） A62（8） A41（6）
B32（3） D06（3） C02（2）
C08（2） D01（2） D04（2）
IPC小类 B01D（20）
IPC B01D039/16（20）
发明人 CESAREO G G（3） RIZZI L G（3） KIM S（2）
公开年 2021（11） 2022（6） 2023（3）
申请年 2021（20）
专利权人 DIRECTA PLUS.（3）

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

Air filter structure, has graphene filter layer arranged on surface of conductive mesh layer, and air filter structure formed on side of mesh layer by electro-deposition process, where mesh layer is formed with mesh.

PARK S M, SAEMI K, KIM S, PARK H J, BAE L, JUNG Y K, JEONG Y W, HONGSEONGPIL

Method for manufacturing non-woven fabric filter, involves mixing and stirring material for manufacturing non-woven fabric and graphene powder, and preparing non woven fabric using mixed material in chip form using melt dispersion machine.

HAK L K, JEONG G, LEE Y B

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

KIM S, JUNG H J, JAE C H

Filter for use in conventional mask for killing viruses or removing fine dust, has metal plate included with set of filter portions arranged such that polymer film and metal plate faces each other.

SHIN B S, LEEJUNWOOK, YOUB J S, LEECHANWOO

Antiviral formulation useful in antiviral filtering material for antiviral face mask, comprises metallic copper particles in unoxidized form, graphene oxide or reduced graphene oxide, and a bonding matrix material.

ALVAREZALVAREZ A, MANJON FERNANDEZ A, SANZ MORAL L M, NORIEGA PEREZ D, RODRIGUEZ GARCIA J, MEGIDO FERNANDEZ L, BOHM S, SUAREZ SANCHEZ R, PEREZ RODRIGUEZ M

Filter element useful for manufacturing air conditioning units for a motor vehicle, comprises a textile substrate comprising woven fabric and nonwoven fabric, and a composition comprising graphene.

RIZZI L G, CESAREO G G

Core used in filter used for processing spent oil including hydraulic oil, gear oil, lubricating oil, turbine lubricating oil, honing oil and roll oil, comprises modified vegetable fiber, modified sawdust, diatomaceous earth, binder, molecular sieve, graphene oxide solution, and antirust agent.

XU Z

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

Air filtering grid for vehicle for military and civilian application, has filter core provided with multiple continuous V-shaped filter core units that are provided with filter sheet, and graphene melt-blown cloth coated on outer surface of filter sheet.

LIANG X