Patent Assignment
Reel/Frame 073237/0024
Assignment of Assignor's Interest
Recorded: 2025-12-16
Pages: 3
Assignor
SINOPHENE NOVEL MATERIALS
Executed: 2025-12-11
Assignee
HUNAN YUANCHANG NEW MATERIAL TECHNOLOGY CO., LTD.
NO. 189, SECTION 2, RENMIN EAST ROAD, CHANGSHA ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, CHANGSHA CITY, HUNAN PROVINCE, 410129, CHINA
Covered Property
(1)
A preparation method of graphene and graphene oxide based on mixed acid system
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 21, 2016
From: ZHANG, LINDE; ZHANG, MINGDONG
To: SHENZHEN CANTONNET ENERGY SERVICES CO. , LTD.
Reel/Frame 039093/0799 →
Assignment of Assignor's Interest
Jun 16, 2021
From: SHENZHEN CANTONNET ENERGY SERVICES CO., LTD.
To: SINOPHENE NOVEL MATERIALS
Reel/Frame 056555/0252 →