国家/地区 世界知识产权组织（7）
IPC部 B（7）
IPC大类 B01（7） A62（3） B32（3）
C01（3） A41（2） A61（2）
C08（2）
IPC小类 B01D（7）
IPC B01D046/00（7）
发明人
公开年 2021（7）
申请年 2020（4）  2021（3） 
专利权人

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

Manufacturing filter for purifying gases, such as air, from microbial pollutants by applying liquid cement coating containing titanium dioxide particles on porous ceramic filter, drying, soaking in water, drying and exposing to radiation.

WITKOWSKI H, DYTRYCH W, JAROSLAWSKI J

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

Polytetrafluoroethylene composite filter material useful for air purification by filtering bacteria and virus aerosol, comprises supporting layer and polytetrafluoroethylene microporous film layer.

XIAO P, XIAO Z, CAI C, TANG Y, LI H, SU J, XIAOPING, WEIGHT X, TSAI C, AN X J

Ink useful for providing viral active or anti-microbial coating to substrate, comprises carrier, graphene or graphene oxide particles dispersed in carrier, and viral active or anti-microbial component adhered to graphene.

CHEN S W, DEVINE S, CHEN S, SANDWINTHROP C

Reactor system useful for producing carbon agglomerates, comprises microwave energy source configured to generate microwave energy, field-enhancing waveguide, expansion chamber in fluid communication with constricted region and configured to expand plasma, and outlet.

TANNER D, COOK D, ANZELMO B H, KALLURI R, STOWELL M W

Method of making filter with laser induced graphene (LIG), involves treating second side of sheet and treating on second side provide porosity to sheet such that sheet is capable of flowing air through LIG from first to second side.

TOUR J M, STANFORD M G, LI J, CHYAN Y, ARNUSCH C J, PRESUTTI S E, MOUSE S M, LY J, YU C, STEVEN P, LEI J