国家/地区 中国（6） 世界知识产权组织（4） 欧洲专利局（EPO）（3） 日本（3） 韩国（3） 美国（3） 澳大利亚（2） 加拿大（2）
IPC部 B（7）
IPC大类 B01（7）
IPC小类 B01D（7）
IPC C23C016/26（7）
发明人 CHOI K（2） HEIGHT M（2） PARK H（2）
PARK H G（2）
公开年 2017（2） 2021（2）
申请年 2020（2） 
专利权人 HEIQ MATERIA.（2）

Preparing gas selective separation filter involves providing graphene membrane on sacrificial support layer, subjecting graphene membrane to transient pressurized ozone gas pulse, purging ozone, and cooling down ozone treated graphene membrane.

AGRAWAL K V, HUANG S, HSU K, AGRAWAL K, HWANG S, HUSH K, XU G

Formation of porous graphene layer used as semipermeable membrane, involves providing catalytically active substrate comprising copper-nickel alloy substrate, to catalyze graphene formation under chemical vapor deposition conditions.

CHOI K, PARK H G, HEIGHT M, CHOI K J, PARK H, PIAO H

Graphene grafted activated carbon purification filter core useful in water purifier to protect people health, comprises activated carbon, graphene, surfactant and additive.

WANG Q, LIU S

Continuous permeable graphene film comprises at least two layers of graphene and nanochannels or nanopores providing a fluid passage from one face of the film to the other.

SEO D H, PINEDA S, MURDOCK A, HAN Z J, OSTRIKOV K, XIE M, VAN DER LAAN T

Preparation of silver/graphene/zinc oxide composite material used for degrading of formaldehyde, involves adding zinc nitrate solution to sodium hydroxide solution, filtering precipitate, washing, drying and calcining dried precipitate.

MA L

Manufacture of porous graphene layer used for e.g. textile industries, involves carrying out chemical vapor deposition of carbon source on catalytically active substrate which catalyzes graphene formation, and forming graphene.

PARK H G, HEIGHT M, CHOI K, PARK H

Impure gas adsorption device useful for graphene chemical vapor deposition apparatus, comprises air flow channel, mixed gas inlet connected with one end of flow channel, multiple semiconductor refrigeration sheets and purified gas outlet.

LIU C, LIAN R