Patent Assignment
Reel/Frame 059605/0354
Assignment of Assignor's Interest
Recorded: 2022-04-14
Pages: 3
Assignor
ZHANG, LINDE
Executed: 2022-04-08
Assignee
HUBEI HIGHLAND GRAPHENE TECHNOLOGY CO., LTD.
NO. 29, XIAOHAN AVENUE, XIAOGAN, CHINA
Covered Property
(1)
Preparation method for graphene quantum dots with different oxygen contents, graphene quantum dot, and fluorescent material
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 15, 2018
From: ZHANG, LINDE; ZHANG, MINGDONG
To: ZHANG, LINDE
Reel/Frame 045073/0420 →
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 075415/0829 →