国家/地区 世界知识产权组织（4）
IPC部 B（4） C（4） A（2）
IPC大类 B01（4） C01（4） B82（2）
IPC小类 B01D（4）
IPC C01B032/182（4）
发明人
公开年 2021（2） 2022（2）
申请年 2021（4）
专利权人

Antibacterial and antiviral filtering device crossed by contaminated air used in separation processes comprises column structure of contiguous filter modules delimited by lateral surface at inlet and lateral surface at outlet.

BUSSO G

Graphene nanocomposite polymeric membrane used as air filtration membrane in high-performance masks and air purifiers, comprises sulfur-doped amine-functionalized silver-linked reduced graphene oxide.

BARDIYA V

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

Carbon material used as filter for desalination or deionization of solution, comprises carbon-containing layer having opening and solid material provided for covering the opening of carbon-containing layer, where solid material comprises hole communicating with opening.

KATSUMI K, TOSHIO T, YASUSHI S, STEVIC D, KATSUYUKI M, KANEKO K, TAKAGI T, SHIMIZU Y, DRAGANA S, MURATA K, MURADA K