Land rig

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090000218A1
SERIAL NO

11823854

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A land rig including a mast, a substructure beneath the mast, the substructure having a top part, movement apparatus connected to the substructure, the movement apparatus connected to the mast, the movement apparatus for moving the mast and for moving the top part of the substructure. 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. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).

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Patent Owner(s)

Patent OwnerAddress
VARCO I/P2838 HOLMES RD HOUSTON TX 77051

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Douglas Wayne Houston, US 1 47
McCoo, Marcus Sherwin Katy, US 2 56

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