Inventor · disambiguated record
James F. Wilkin
Also filed as: WILKIN JAMES · WILKIN JAMES F · WILKIN JAMES FREDERICK
10 granted patents·6 pending applications·286 citations·filing 1993–2019
90Inventor score
Top patents by PatentIndex Score
16 records- 0188US7128147B2Modular liner hangerWEATHERFORD LAMB·Filed 2005·Granted Oct 31, 2006·20 cites·4 claims
- 0282US6513595B1Port collar assembly for use in a wellboreWEATHERFORD LAMB·Filed 2000·Granted Feb 4, 2003·67 cites·15 claims
- 0378US5447200AMethod and apparatus for downhole sand clean-out operations in the petroleum industryFiled 1994·Granted Sep 5, 1995·88 cites·18 claims
- 0465US6612372B1Two-stage downhole packerWEATHERFORD LAMB·Filed 2000·Granted Sep 2, 2003·33 cites·15 claims
- 0562US7108071B2Automatic tubing fillerWEATHERFORD LAMB·Filed 2002·Granted Sep 19, 2006·32 cites·25 claims
- 0662US5423382AApparatus for releasing perforating gun equipment from a well casingDRESSER IND·Filed 1993·Granted Jun 13, 1995·42 cites·20 claims
- 0752US9677380B2Sliding sleeve having inverting ball seatWEATHERFORD LAMB INC·Filed 2013·Granted Jun 13, 2017·0 cites·18 claims
- 0847USD918750SScale with an extendable length measuring instrumentSECA GMBH & CO KG·Filed 2019·Granted May 11, 2021·4 cites·1 claims
- 0947US9624756B2Sliding sleeve having contracting, dual segmented ball seatWEATHERFORD LAMB INC·Filed 2013·Granted Apr 18, 2017·0 cites·23 claims
- 1041US2014251628A1Anti-Rotation Assembly for Sliding SleeveWILKIN JAMES F·Filed 2013·Application pending·0 cites
- 1140US11840905B2Stage toolWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Dec 12, 2023·0 cites·19 claims
- 1239US2010108323A1Reliable Sleeve Activation for Multi-Zone Frac Operations Using Continuous Rod and Shifting ToolsWEATHERFORD LAMB·Filed 2008·Application pending·0 cites
- 1338US2012012342A1Downhole Packer Having Tandem Packer Elements for Isolating Frac ZonesWILKIN JAMES F·Filed 2010·Application pending·0 cites
- 1438US2012012343A1Downhole Packer Having Swellable SleeveWILKIN JAMES F·Filed 2010·Application pending·0 cites
- 1533US2003127222A1Modular liner hangerWEATHERFORD INTERNATIONAL INC·Filed 2002·Application pending·0 cites
- 1631US2003019630A1Port Collar assembly for use in a wellboreWEATHERFORD LAMB·Filed 2002·Application pending·0 cites
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