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US Patent 9212532 Blowout preventer assembly

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US Patent 12116326 Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst
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US Patent 12110757 Packer arrangement for sealingly guiding a drillstring therethrough
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US Patent 11993992 Modified cement retainer with milling assembly
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US Patent 11913298 Downhole milling system
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US Patent 11905791 Float valve for drilling and workover operations
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US Patent 11859815 Flare control at well sites
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Patent abstract

A blowout preventer assembly comprising an annular blowout preventer having an annular packing unit and an actuator operable to reduce the internal diameter of the annular packing unit, wherein the assembly further comprises a stripping sleeve having a tubular elastomeric sleeve which in use is positioned generally centrally of the packing unit so that the packing unit surrounds at least a portion of the elastomeric sleeve.

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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=09212532
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US Patent 09212532 Blowout preventer assembly US Patent 9212532 Blowout preventer assembly

Infobox
Patent Number
09212532
Patent Number
9212532
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Website URL
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 US Patent 09212532 Blowout preventer assembly

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
09212532
Date of patent
December 15, 2015
Patent application number
13640933
Date Filed
April 13, 2011
Patent primary examiner
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John K. Fristoe, Jr.

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