Assignee
WEATHERFORD INTERNATIONAL INC
US·8 granted patents·1 pending application·285 citations·filing 1997–2002
Top patents by PatentIndex Score
9 records- 0185US6050340ADownhole pump installation/removal system and methodWEATHERFORD INTERNATIONAL INC·Filed 1998·Granted Apr 18, 2000·117 cites·36 claims
- 0280US5960886ADeep well pumping apparatusWEATHERFORD INTERNATIONAL INC·Filed 1997·Granted Oct 5, 1999·46 cites·19 claims
- 0351US6213217B1Gas operated apparatus and method for maintaining relatively uniformed fluid pressure within an expandable well tool subjected to thermal variantsWEATHERFORD INTERNATIONAL INC·Filed 1999·Granted Apr 10, 2001·27 cites·16 claims
- 0450US7152743B2Screening panel securing systemWEATHERFORD INTERNATIONAL INC·Filed 2002·Granted Dec 26, 2006·6 cites·28 claims
- 0549US6691776B2Downhole tool retention apparatusWEATHERFORD INTERNATIONAL INC·Filed 2001·Granted Feb 17, 2004·19 cites·13 claims
- 0649US6105675ADownhole window milling apparatus and method for using the sameWEATHERFORD INTERNATIONAL INC·Filed 1999·Granted Aug 22, 2000·30 cites·14 claims
- 0745US6202748B1Multi-stage maintenance device for subterranean well toolWEATHERFORD INTERNATIONAL INC·Filed 1999·Granted Mar 20, 2001·20 cites·11 claims
- 0844US6305477B1Apparatus and method for maintaining relatively uniform fluid pressure within an expandable well tool subjected to thermal variantsWEATHERFORD INTERNATIONAL INC·Filed 1999·Granted Oct 23, 2001·20 cites·25 claims
- 0933US2003127222A1Modular liner hangerWEATHERFORD INTERNATIONAL INC·Filed 2002·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →