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Patents Grants
last 30 patents
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Patent Grant
Blowout preventer with reduced fluid volume
Patent number
11,629,570
Issue date
Apr 18, 2023
Schlumberger Technology Corporation
Pascal Berthaud
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
LOCK SEQUENCING SYSTEM FOR A BLOWOUT PREVENTER
Publication number
20240240535
Publication date
Jul 18, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Pascal Berthaud
E21 - EARTH DRILLING MINING
Information
Patent Application
BLOWOUT PREVENTER WITH REDUCED FLUID VOLUME
Publication number
20220251918
Publication date
Aug 11, 2022
SCHLUMBERGER TECHNOLOGY CORPORATION
Pascal Berthaud
E21 - EARTH DRILLING MINING
Information
Patent Application
CAVITY LOCK SYSTEM FOR A BLOWOUT PREVENTER
Publication number
20210156215
Publication date
May 27, 2021
Cameron International Corporation
Taylor Mozisek
E21 - EARTH DRILLING MINING