国家/地区 世界知识产权组织（7） 日本（6） 美国（6） 中国（5） 欧洲专利局（EPO）（4） 印度（4） 韩国（3） 加拿大（2）
IPC部 A（7）
IPC大类 B01（7）
IPC小类 B01D（7）
IPC C01B032/182（7）
发明人
公开年 2021（2）
申请年 2021（2） 
专利权人

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

Hybrid graphene material used for manufacturing filters of substances from any tobacco product, preferably cigarettes, industrial processes, internal combustion engines or chemical processes, comprises micronized graphite.

BENSE CANDELA T, BANCHERO ISASMENDI M M, UMPIERREZ VAZQUEZ E F, RUFENER C, VILLANUEVA J P, PARDO H, FACCIO R, MOMBRU A, BENSE C T, BANCHERO I M M, UMPIERREZ V E F, BENSE C T S, CANDELA T B, ISASMENDI M M B, VAZQUEZ E F U, UMPIERREZ VIZQUEZ E F, UFENER C, UMPIERREZ VAZQUEZ E, DRA. PARDO H, DR. FACCIO R, DR. MOMBRU A

Combating biofouling or controlling microorganisms in aqueous medium by providing surface coated with laser-induced graphene layer in aqueous medium.

ARNUSCH C J, SINGH S P, SARGUNARAJ F, OREN Y, TOUR J M, LI Y

Removing urea from biological fluids, comprises e.g. contacting fluid comprising urea with mass of graphene-based material particles, and sorbing portion of urea into or onto graphene-based material particles.

NATAN M J, KYRLIDIS A

Graphite filter tipped cigarette comprises a filter with fibers segment and tobacco where a graphene adsorption section has wrapping paper composition and is coated with graphene, which is chemically bonded to filter fibers.

WANG G, TANG Y, ZHANG J, ZHANG A, LIU D

Composition useful for fabricating a functionalized carbon-based nanostructure, comprises graphene or graphene oxide comprising at least one functional group associated with the graphene or graphene oxide.

SWAGER T M, COLLINS W R, LEWANDOWSKI W, SCHMOIS E, SYDLIK S, WALISH J, GOODS J B