Assignee
PRIDECO INC
US·6 granted patents·297 citations·filing 1991–1994
Top patents by PatentIndex Score
6 records- 0187US5165491AMethod of horizontal drillingPRIDECO INC·Filed 1991·Granted Nov 24, 1992·117 cites·2 claims
- 0279US5184495AMethod of internally and externally upsetting the end of a metal tubePRIDECO INC·Filed 1991·Granted Feb 9, 1993·72 cites·3 claims
- 0371US5286069AStress relief groove for drill pipePRIDECO INC·Filed 1992·Granted Feb 15, 1994·36 cites·11 claims
- 0457US5148876ALightweight drill pipePRIDECO INC·Filed 1991·Granted Sep 22, 1992·31 cites·6 claims
- 0554US5358285AStress relief groove for drill pipePRIDECO INC·Filed 1994·Granted Oct 25, 1994·27 cites·13 claims
- 0645US5479721AMethod and apparatus for measuring the length (MIU) of the internal taper of an internally upset drill pipe tubePRIDECO INC·Filed 1994·Granted Jan 2, 1996·14 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →