国家/地区 美国（6） 欧洲专利局（EPO）（3） 日本（3） 世界知识产权组织（3） 澳大利亚（2） 中国（2） 印度（2） 韩国（2）
IPC部 C（6）
IPC大类 C01（6） D01（6） C08（3）
C10（3） B82（2） G01（2）
IPC小类 C01B（6）
IPC D01F009/15（6）
发明人 TARGETT M（3） ATKINS C A（2） LINDEMANN G W（2）
公开年 2021（6）
申请年 2021（4）  2020（2） 
专利权人 CARBON HOLDI.（3）

Producing graphene or carbon fiber involves extracting coal sample from location, performing spectral analysis on coal sample to detect hydrogen to carbon ratio of coal sample, concentration of contaminant in coal sample.

TARGETT M, LINDEMANN G W, ATKINS C A

Processing coal, comprises e.g. subjecting raw coal to liquefaction process effective to form pitch resin, and subjecting the pitch resin to variable crystallinity spinning process effective to form raw fiber.

TARGETT M, YURCHICK C L

Producing magnetic carbon nanomaterial used in e.g., medical applications by heating electrolyte media, positioning the molten electrolyte media between anode and cathode of electrolytic cell and introducing a magnetic additive component.

LICHT S

Pitch-based ultrafine carbon fiber comprises specific nitrogen atom content measured by X-ray photoelectron spectroscopy, and has specified average fiber diameter and true density.

YAGI K, KOMURA S, HIRAKAWA R

Preparing carbon fibers used in article involves converting coal to low-softening point carbon pitch, extruding the pitch into carbon fibers, adding graphite/graphene sheath to the carbon fibers and calcining the carbon fibers, in which the pitch has high oxygen content.

STILLER A H

Producing reduced graphene oxide from coal by thermally processing coal, oxidizing thermally processed coal to form coal oxide, and forming reduced graphene oxide comprising impurity atoms from coal oxide.

ATKINS C A, LINDEMANN G W, TARGETT M