US Patent 8468753 Drilling rigs and erection methods
Patent 8468753 was granted and assigned to National Oilwell Varco on June, 2013 by the United States Patent and Trademark Office.
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Patent abstract
Systems and methods for erecting a drilling rig. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
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Patent Inventor Names
Chunqiao Ren0
Hui Chun Sheng0
Robert Benjamin Donnally0
Stuart Arthur Lyall McCurdy0
Xi Lin Liu0
Yan Yu0
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US Patent 08468753 Drilling rigs and erection methods US Patent 8468753 Drilling rigs and erection methods
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Patent Number
08468753
Patent Number
8468753
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US Patent 08468753 Drilling rigs and erection methods
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Is a
Current assignee
Patent jurisdiction
Patent number
08468753
Date of patent
June 25, 2013
Patent application number
12074270
Date Filed
February 29, 2008
Patent primary examiner
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