国家/地区 世界知识产权组织（3） 中国（2）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01D053/04（3）
发明人 ZHANG L（3）
公开年 2016（2）
申请年 2016（2） 
专利权人 ZHANG L（3）

Air filtration device, has filtration layer arranged at outer coatings inner sides, and graphene coatings located at outer surface of filtration layer, where graphene coatings and support layers are located at inner sides of outer coatings.

ZHANG L

Gas filter used in air filter system, has graphene self-supporting layer made of graphene material comprising graphene and/or functionalized graphene such as aminated graphene, carboxylated graphene, cyano graphene, or borated graphene.

ZHANG L

Tobacco smoke filtering device for adsorption of polycyclic aromatic hydrocarbons by graphene material, has smoke gas filtering passage, filtering channel provided with graphene material segment, and graphene airgel film segment.

ZHANG L