国家/地区 美国（12）
IPC部 B（12）
IPC大类 B01（12） A62（5） A41（4）
C01（4） A61（3） B32（3）
C08（2）
IPC小类 B01D（12）
IPC B01D046/00（12）
发明人 JANG B Z（2） ZHAMU A（2）
公开年 2021（12）
申请年 2020（7）  2021（5） 
专利权人 NANOTEK INST.（2）

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

Air purifying device for separating materials from air flow, has collector plates arranged downstream of set of ionization needles, where device generates ionization corona discharge by positive ionization voltage led to needles.

TULKKI J, JUHANI T, SKOGSTER N, MAKKONEN P

Air filtration device for use in air purification system, has high efficiency particulate air (HEPA) filter media that comprises graphene oxide (GO) as antibacterial and antiviral material configured to inactivate trapped micro-organisms.

VOSKRESENSKA V, POLYAKOVA E, STOLYAROV D

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

Face mask e.g. surgical mask, comprises mask component for covering wearers mouth and nose and comprising air-permeable outer layer, inner layer and graphene layer, and fastener for connecting mask component to wearer.

JANG B Z, ZHAMU A

Multi-layered face mask for being placed over user's mouth and nose, has copper wire trim running along top of mask from end to end, and Bluetooth wireless transmitter embedded within inner and outer layers.

CHILDERS J M, RUBIO R J

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

Removing contaminant involves using a material comprising an adsorption material for adsorption of contaminant and decomposition material for decomposition of contaminant.

YANG D, KWON H, LEE H C, JI S, CHI X, LEE H, LIANG D, JI S M, JAE K, YANG T S

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

Visible light photocatalytic glass fiber filter core for air purification, comprises nano-scale particles, silver nanowires, adhesive system and superfine glass fiber cotton.

ZENG H, ZHAI F, LI L, CHENG J, LUO Y, FENG G, HU M