国家/地区 中国（9） 美国（7） 世界知识产权组织（6） 欧洲专利局（EPO）（5） 日本（5） 韩国（3） 加拿大（2） 台湾（2）
IPC部 C（13） B（5） H（5）
IPC大类 C01（13）
IPC小类 C01B（13）
IPC C01B032/19（13）
发明人 BLAIR R（2） CHENG Q（2） LIU J（2）
SUN P（2）
公开年 2014（13）
申请年 2013（7）  2014（6） 
专利权人 BLAIR R（2） GARMOR INC（2） SHANGHAI INS.（2）

Production of graphene powder involves heat-treating graphitizable polymer film, forming heat-treated film having turbostratic graphitic structure, shearing heat-treated film, and forming particulate having thickness in specified range.

SRIVASTAVA I

Preparing graphene that is useful in battery and composite materials, comprises placing graphite, abrasives and sulfuric acid in grinding device, separating abrasives and sulfuric acid from the mixture, washing, and drying.

LIU G, SUN P, WU Z

Manufacture of graphene aggregate for negative electrode carbon material of lithium ion battery involves collecting aggregates of graphene after electrochemically peeling graphene considering carbon material as cathode.

CHENG Q, TAMURA Y, YUGE R

Dispersed natural polysaccharide in graphene nanomaterial, prepared by dispersing graphene nanosheet material in natural polysaccharide.

HUANG Y, KUGA S, SUN P, WU M

Making graphene oxide or flakes, comprises placing graphite into water containing oxidizing agent, mechanically exfoliating graphite into graphene flakes, and separating graphene flakes from water.

BLAIR R

Preparation of graphene suspension used as additive for supercapacitor electrode, involves preparing graphene flakes, preparing polar or nonpolar fluid, and suspending graphene flakes in fluid by mixing until suspension is uniform.

BLAIR R, STOLTZ R, BULLINGTON J

Dispersion of nanoparticles of graphene in water in presence of surfactant, used for treating articles of manufacture, and used as additive or component of elastomeric compositions or of paints or of textile articles.

CESAREO G, PARRINI M R, RIZZI L G, PARRINI R

Producing random structure graphite intercalation compounds (GIC) by preparing alkali metal-GIC having alkali metal intercalated between graphene layers, and making polar protic solvent to contact with alkali-metal GIC.

WADA T, NAKASUGA A, TOYODA M, TAKUYA W

Transferring graphene to intermediate layer used for preparing graphene electric device, involves mixing polydimethylsiloxane glue with raw substrate, where polydimethylsiloxane glue is solidified into polydimethylsiloxane transition layer.

LI T, LIANG C, WANG W, WANG Y

Preparation of multiple graphene layer used for e.g. lithium ion battery cathode material, by mixing charcoal powder and strong alkali, microwave heating, washing with water and acid, removing inorganic impurity, and purifying.

YANG Z, LIU J