国家/地区 中国（3） 美国（2） 世界知识产权组织（2）
IPC部 A（4）
IPC大类 B01（4）
IPC小类 B01D（4）
IPC B32B009/00（3） B01D039/16（2） B01D046/00（2）
B32B005/02（2） B32B005/26（2） B32B009/04（2）
发明人
公开年 2021（4）
申请年 2021（4）
专利权人

Environment-friendly furniture composite board, has wrapping clamped and connected with clamping groove on plate main body through splicing strip, and adsorption filling layer filled between wrapping edge and side wall of plate body.

HE R

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

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

Diatom cloth with antibacterial, purifying and humidifying function comprises diatom material, activated carbon, graphene, catalyst, pore-forming agent and cloth.

HAN F, DU Z