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/P10 000 RICHMOND HOUSTON TX 77042

International Classification(s)

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  • 2007 Application Filing Year
  • E04H Class
  • 340 Applications Filed
  • 160 Patents Issued To-Date
  • 47.06 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20072008200920102011201220132014201520160255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Douglas Wayne Houston, US 1 56
McCoo, Marcus Sherwin Katy, US 3 68

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Patent Citation Ranking

  • 56 Citation Count
  • E04H Class
  • 97.52 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4111591175111201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7091 - 100100 +05101520253035404550556065707580859095100105110115120

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