IP Library › Assignment 056555/0252
Patent Assignment
Reel/Frame 056555/0252

Assignment of Assignor's Interest

Recorded: 2021-06-16 Pages: 2
Assignor
Assignee
SINOPHENE NOVEL MATERIALS
A-202, NO. 20 GAOXINXI RD., GUANGMING DISTRICT, SHENZHEN, GUANGDONG, CHINA
Covered Property (1)
A preparation method of graphene and graphene oxide based on mixed acid system
Patent: 9,550,679 →
Application: 15/106,842 →
Publication: US 2016/0311688
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 Dec 16, 2025
From: SINOPHENE NOVEL MATERIALS
To: HUNAN YUANCHANG NEW MATERIAL TECHNOLOGY CO., LTD.
Reel/Frame 073237/0024 →