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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
10266617
Issue Dt:
04/23/2019
Application #:
14911369
Filing Dt:
02/10/2016
Publication #:
20160200848
Pub Dt:
07/14/2016
Inventors:
Changming SU, Mengyun ZHAO, Jianzheng SU, Rusheng ZHANG, Qiulian LONG, Suobing ZHANG et al
Title:
CATIONIC COPOLYMER AND USE THEREOF IN LOST CIRCULATION ADDITIVE
Assignment: 1
Reel/Frame:
037705/0836Recorded: 02/11/2016Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
SU, CHANGMING
Exec Dt:
01/11/2016
ZHAO, MENGYUN
Exec Dt:
01/11/2016
SU, JIANZHENG
Exec Dt:
01/14/2016
ZHANG, RUSHENG
Exec Dt:
01/14/2016
LONG, QIULIAN
Exec Dt:
01/19/2016
ZHANG, SUOBING
Exec Dt:
01/14/2016
ZHANG, DANIAN
Exec Dt:
01/14/2016
ZHENG, CHENGGANG
Exec Dt:
01/14/2016
MA, YUSHENG
Exec Dt:
01/14/2016
Assignees:
CHINA PETROLEUM & CHEMICAL CORPORATION
NO. 22 CHAOYANGMEN NORTH SREEET
CHAOYANG DISTRICT
BEIJING, CHINA 100728
CHINA PETROLEUM & CHEMICAL CORPORATION EXPLORATION & PRODUCTION RESEARCH INSTITUTE
31 XUEYUAN ROAD
HAIDIAN DISTRICT
BEIJING, CHINA 100083
Correspondent:
BUCHANAN INGERSOLL & ROONEY
PO BOX 1404
ALEXANDRIA, VA 22314-2727
Assignment: 2
Reel/Frame:
039299/0547Recorded: 07/11/2016Pages: 8
Conveyance:
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE 'S ADDRESS PREVIOUSLY RECORDED AT REEL: 037705 FRAME: 0836. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors:
SU, CHANGMING
Exec Dt:
01/11/2016
ZHAO, MENGYUN
Exec Dt:
01/11/2016
SU, JIANZHENG
Exec Dt:
01/14/2016
ZHANG, RUSHENG
Exec Dt:
01/14/2016
LONG, QIULIAN
Exec Dt:
01/19/2016
ZHANG, SUOBING
Exec Dt:
01/14/2016
ZHANG, DANIAN
Exec Dt:
01/14/2016
ZHENG, CHENGGANG
Exec Dt:
01/14/2016
MA, YUSHENG
Exec Dt:
01/14/2016
Assignees:
CHINA PETROLEUM & CHEMICAL CORPORATION
NO. 22 CHAOYANGMEN NORTH STREET, CHAOYANG DISTRICT
BEIJING, CHINA 100728
CHINA PETROLEUM & CHEMICAL CORPORATION EXPLORATION & PRODUCTION RESEARCH INSTITUTE
31 XUEYUAN ROAD, HAIDIAN DISTRICT
BEIJING, CHINA 100083
Correspondent:
BUCHANAN INGERSOLL & ROONEY
PO BOX 1404
ALEXANDRIA, VA 22314-2727

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