Patent Assignment
Reel/Frame 057684/0552
Assignment of Assignor's Interest
Recorded: 2021-10-01
Pages: 3
Assignee
SAUDI ARABIAN OIL COMPANY
P.O. BOX 5000, DHAHRAN, 31311, SAUDI ARABIA
Covered Property
(1)
Composition and Method of Making Cationic Surfactants with Two Quaternary Ammonium Head Groups
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 1, 2021
From: ZHANG, XUAN; CAO, DONGQING
To: ARAMCO FAR EAST (BEIJING) BUSINESS SERVICES CO., LTD.
Reel/Frame 057669/0795 →
Assignment of Assignor's Interest
May 27, 2022
From: ARAMCO FAR EAST (BEIJING) BUSINESS SERVICES CO., LTD.
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 060205/0594 →