Patent Assignment
Reel/Frame 058593/0642
Assignment of Assignor's Interest
Recorded: 2022-01-10
Pages: 3
Assignor
CAO, DONGQING
Executed: 2021-12-21
Assignee
ARAMCO FAR EAST (BEIJING) BUSINESS SERVICES CO. LTD.
UNITS 01-25, 43F, CHINA WORLD TOWER, NO. 1 JIAN GUO MEN WAI AVENUE, CHAOYANG DISTRICT, BEIJING, 100004, CHINA
Covered Property
(1)
Alternating Microsphere and Smartwater Injection for Enhanced Oil Recovery
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 10, 2022
From: AYIRALA, SUBHASH CHANDRABOSE; HAN, MING; AL-SALAH, SALEH HAMAD; YOUSEF, ALI
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 058593/0390 →
Assignment of Assignor's Interest
Feb 15, 2022
From: ARAMCO FAR EAST (BEIJING) BUSINESS SERVICES CO. LTD.
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 059112/0191 →