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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	8535437	Issue Dt:	09/17/2013	Application #:	13511640	Filing Dt:	07/03/2012
Publication #:	20120260829	Pub Dt:	10/18/2012
Inventors:	Elena Pershikova, Olivier Porcherie, Slaheddine Kefi, Yamina Boubeguira, Hafida Achtal
Title:	PUMPABLE GEOPOLYMERS COMPRISING A FLUID-LOSS AGENT

Assignment: 1

Reel/Frame:

028464/0945

Recorded: 06/28/2012

Pages: 10

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

PERSHIKOVA, ELENA

Exec Dt:

06/12/2012

PORCHERIE, OLIVIER

Exec Dt:

06/15/2012

KEFI, SLAHEDDINE

Exec Dt:

06/13/2012

BOUBEGUIRA, YAMINA

Exec Dt:

06/27/2012

ACHTAL, HAFIDA

Exec Dt:

06/13/2012

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION

300 SCHLUMBERGER DRIVE

SUGAR LAND, TEXAS 77478

Correspondent:

SCHLUMBERGER - COE

WESTERNGECO 10001 RICHMOND AVE.

ROOM 3028

HOUSTON, TX 77042

Assignment: 2

Reel/Frame:

030937/0846

Recorded: 07/25/2013

Pages: 12

Conveyance:

CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NUMBER OF 13511549 TO 13511640 PREVIOUSLY RECORDED ON REEL 028464 FRAME 0945. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT DOCUMENT.

Assignors:

PERSIKOVA, ELENA

Exec Dt:

06/12/2012