Patent Assignment
Reel/Frame 039092/0682
Assignment of Assignor's Interest
Recorded: 2016-06-21
Pages: 3
Assignee
SHENZHEN CANTONNET ENERGY SERVICES CO. , LTD.
ROOM 501, UNIT C, A3 BUILDING, GUANGMING TECHNOLOGY PARK, CHINA MERCHANTS NO. 3009, GUANGUANG ROAD, GUANGMING NEW DISTRICT SHENZHEN, GUANGDONG 518000 (CN), SHENZHEN, CHINA
Covered Property
(1)
A preparation method of graphene as well as graphene oxide based on anthracite
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 7, 2022
From: SHENZHEN CANTONNET ENERGY SERVICES CO. , LTD.
To: HUBEI HIGHLAND GRAPHENE TECHNOLOGY CO., LTD.
Reel/Frame 059537/0154 →
Assignment of Assignor's Interest
Aug 1, 2025
From: HUBEI HIGHLAND GRAPHENE TECHNOLOGY CO., LTD.
To: CARBON NANO ENGINEERING SYSTEMS CO., LTD.
Reel/Frame 071904/0322 →
Assignment of Assignor's Interest
Apr 20, 2026
From: CARBON NANO ENGINEERING SYSTEMS CO., LTD.
To: HUNAN YUANCHANG NEW MATERIAL TECHNOLOGY CO., LTD.
Reel/Frame 074413/0589 →