IP Library › Assignment 028464/0945
Patent Assignment
Reel/Frame 028464/0945

Assignment of Assignor's Interest

Recorded: 2012-06-28 Pages: 10
Assignors
PERSHIKOVA, ELENA
Executed: 2012-06-12
PORCHERIE, OLIVIER
Executed: 2012-06-15
KEFI, SLAHEDDINE
Executed: 2012-06-13
BOUBEGUIRA, YAMINA
Executed: 2012-06-27
ACHTAL, HAFIDA
Executed: 2012-06-13
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property (1)
Pumpable Geopolymers Comprising a Fluid-Loss Agent
Patent: 8,535,437 →
Application: 13/511,640 →
Publication: US 2012/0260829
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
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. Jul 25, 2013
From: PERSIKOVA, ELENA; PORCHERIE, OLIVIER; KEFI, SLAHEDDINE; BOUBEGUIRA, YAMINA
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 030937/0846 →