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

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

Multi-layered membrane useful for separating many ions or molecules in a fluid stream and in device for osmotic power generation, comprises a top layer, a bottom layer, and a spacer layer.

GARAJ S, SPINA M