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Reel/Frame:039299/0547   Pages: 8
Recorded: 07/11/2016
Attorney Dkt #:0079521-000021
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE 'S ADDRESS PREVIOUSLY RECORDED AT REEL: 037705 FRAME: 0836. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Total properties: 1
1
Patent #:
Issue Dt:
04/23/2019
Application #:
14911369
Filing Dt:
02/10/2016
Publication #:
Pub Dt:
07/14/2016
Title:
CATIONIC COPOLYMER AND USE THEREOF IN LOST CIRCULATION ADDITIVE
Assignors
1
Exec Dt:
01/11/2016
2
Exec Dt:
01/11/2016
3
Exec Dt:
01/14/2016
4
Exec Dt:
01/14/2016
5
Exec Dt:
01/19/2016
6
Exec Dt:
01/14/2016
7
Exec Dt:
01/14/2016
8
Exec Dt:
01/14/2016
9
Exec Dt:
01/14/2016
Assignees
1
NO. 22 CHAOYANGMEN NORTH STREET, CHAOYANG DISTRICT
BEIJING, CHINA 100728
2
31 XUEYUAN ROAD, HAIDIAN DISTRICT
BEIJING, CHINA 100083
Correspondence name and address
BUCHANAN INGERSOLL & ROONEY
PO BOX 1404
ALEXANDRIA, VA 22314-2727

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