国家/地区 中国（3）
IPC部 B（3） C（3） A（2）
IPC大类 B32（3）
IPC小类 B32B（3） C02F（3） B01D（2）
C01B（2）
IPC B32B009/00（3）
发明人
公开年 2021（3）
申请年 2021（3） 
专利权人

Large area graphene-based seawater desalination film comprises support layer and composite interlayer structural unit, where composite interlayer structural unit is sequentially provided with porous graphene layer, graphene oxide layer and porous graphene layer from bottom to top.

QING F, HOU Y, LI X

Self-circulating aquiculture device, comprises fish pond, excrement collector, filter, infrared heating film set at bottom and four sides of fish pond and includes waterproof layer, insulating layer, protective layer, and PET film, and water storage tank.

XU S

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