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Reel/Frame:029107/0984   Pages: 4
Recorded: 10/10/2012
Attorney Dkt #:106956.00028
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 1
1
Patent #:
Issue Dt:
01/26/2016
Application #:
13628020
Filing Dt:
09/26/2012
Publication #:
Pub Dt:
03/28/2013
Title:
Filtration Control Agent And A Drilling Fluid Containing The Same
Assignors
1
Exec Dt:
09/27/2012
2
Exec Dt:
09/27/2012
3
Exec Dt:
09/27/2012
4
Exec Dt:
09/27/2012
5
Exec Dt:
09/27/2012
6
Exec Dt:
09/27/2012
Assignees
1
NO. 22 CHAOYANGMEN NORTH STREET
CHAOYANG DISTRICT
BEIJING, CHINA 100728
2
NORTH STAR TIMES TOWER, NO. 8 BEICHEN DONG ROAD
CHAOYANG DISTRICT
BEIJING, CHINA 100101
Correspondence name and address
SQUIRE SANDERS (US) LLP
275 BATTERY STREET, SUITE 2600
SAN FRANCISCO, CA 94111

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