Patent Assignment
Reel/Frame 033144/0119
Assignment of Assignor's Interest
Recorded: 2014-06-19
Pages: 6
Assignors
ZHAN, SHENG
Executed: 2014-04-29
ZHAO, JINHAI
Executed: 2014-04-29
ZHENG, HERONG
Executed: 2014-04-28
XU, WEIPING
Executed: 2014-04-29
Assignees
CHINA PETROLEUM & CHEMICAL CORPORATION
22 CHAOYANGMEN NORTH STREET, CHAOYANG DISTRICT, BEIJING, 100728, CHINA
SINOPEC TECH HOUSTON, LLC
3050 POST OAK BLVD., SUITE 777, HOUSTON, TEXAS, 77056
Covered Property
(1)
Reliability Assessment and Risk Management for Managed Pressure Drilling
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 9, 2019
From: SINOPEC TECH HOUSTON, LLC.
To: CHINA PETROLEUM & CHEMICAL CORPORATION
Reel/Frame 048835/0464 →
Corrective Assignment to Correct the Clerical Error Previously Recorded at Reel: 048835 Frame: 0464. Assignor(S) Hereby Confirms the Assignment.
Jun 6, 2019
From: SINOPEC TECH HOUSTON, LLC.
To: CHINA PETROLEUM & CHEMICAL CORPORATION
Reel/Frame 049408/0265 →