IP Library › Assignment 030937/0846
Patent Assignment
Reel/Frame 030937/0846

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.

Recorded: 2013-07-25 Pages: 12
Assignors
PERSIKOVA, 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.
Assignment of Assignor's Interest Jun 28, 2012
From: PERSHIKOVA, ELENA; PORCHERIE, OLIVIER; KEFI, SLAHEDDINE; BOUBEGUIRA, YAMINA
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 028464/0945 →