Patent Assignment
Reel/Frame 032968/0567
Assignment of Assignor's Interest
Recorded: 2014-05-27
Pages: 8
Assignors
KHAMMAR, MEROUANE
Executed: 2013-12-13
MARCHESINI, FLAVIO
Executed: 2013-12-13
SANTRA, ASHOK
Executed: 2013-12-17
PAIVA, MARIA DAS DORES
Executed: 2013-12-13
SODHI, THOMAS
Executed: 2013-12-13
Assignee
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BOULEVARD, HOUSTON, TEXAS, 77072
Covered Property
(1)
Methods for Producing Fluid Migration Resistant Cement Slurries
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 23, 2017
From: PETROLEO BRASILEIRO S.A. - PETROBRAS
To: HALLIBURTON SERVICOS LTDA
Reel/Frame 042800/0341 →
Corrective Assignment to Correct the Assignor and Assignee Previously Recorded at Reel: 042800 Frame: 0341. Assignor(S) Hereby Confirms the Assignment.
Feb 22, 2018
From: HALLIBURTON ENERGY SERVICES, INC.
To: PETROBRAS; HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 045390/0638 →