IP Library › Assignment 042800/0341
Patent Assignment
Reel/Frame 042800/0341

Assignment of Assignor's Interest

Recorded: 2017-06-23 Pages: 8
Assignor
Assignee
HALLIBURTON SERVICOS LTDA
RUA DE ASSEMBLEIA NO. 66, FLOORS, 3RD, 6TH, 7TH AND 8TH, RIO DE JANEIRO, 20011-000, BRAZIL
Covered Properties (3)
Methods for Producing Fluid Migration Resistant Cement Slurries
Patent: 9,624,419 →
Application: 14/360,850 →
Publication: US 2015/0232736
Methods for Producing Fluid Invasion Resistant Cement Slurries
Application: 14/434,702 →
Publication: US 2015/0284621
Modular Sensed Annular Well Apparatus for Cement Testing
Patent: 9,939,419 →
Application: 14/411,994 →
Publication: US 2016/0274078
Related Assignments (4)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest May 27, 2014
From: KHAMMAR, MEROUANE; MARCHESINI, FLAVIO; SANTRA, ASHOK; PAIVA, MARIA DAS DORES
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 032968/0567 →
Assignment of Assignor's Interest Dec 30, 2014
From: RIBEIRO, SERGIO S.; MARCHESINI, FLAVIO H.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 034601/0454 →
Assignment of Assignor's Interest Apr 9, 2015
From: MARCHESINI, FLAVIO H.; DE OLIVEIRA, RAFAEL MENEZES; KHAMMAR, MEROUANE; SANTRA, ASHOK K.
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 035373/0648 →
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 →