Inventor · disambiguated record
James G. Martens
Also filed as: MARTENS JAMES G
12 granted patents·2 pending applications·325 citations·filing 1995–2018
91Inventor score
Top patents by PatentIndex Score
14 records- 0190US7299880B2Surge reduction bypass valveWEATHERFORD LAMB·Filed 2005·Granted Nov 27, 2007·45 cites·32 claims
- 0289US7730965B2Retractable joint and cementing shoe for use in completing a wellboreWEATHERFORD LAMB·Filed 2006·Granted Jun 8, 2010·43 cites·61 claims
- 0388US8955543B2Large bore auto-fill float equipmentGROESBECK BRAD·Filed 2011·Granted Feb 17, 2015·22 cites·14 claims
- 0486US7219730B2Smart cementing systemsWEATHERFORD LAMB·Filed 2002·Granted May 22, 2007·79 cites·29 claims
- 0583US5575333ACentralizerWEATHERFORD US INC·Filed 1995·Granted Nov 19, 1996·122 cites·16 claims
- 0680US9328585B2Large bore auto-fill float equipmentBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Granted May 3, 2016·5 cites·10 claims
- 0778US9127519B2Well centralizerBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Granted Sep 8, 2015·6 cites·12 claims
- 0870US9297218B2Well centralizerBLACKHAWK SPECIALTY TOOLS LLC·Filed 2015·Granted Mar 29, 2016·2 cites·16 claims
- 0966US10041310B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2017·Granted Aug 7, 2018·1 cites·16 claims
- 1053US10619428B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2018·Granted Apr 14, 2020·0 cites·17 claims
- 1149US2015159457A1Automated connection assemblyBLACKHAWK SPECIALTY TOOLS LLC·Filed 2014·Application pending·0 cites
- 1248US9689216B2Method and apparatus for automated connection of a fluid conduitBLACKHAWK SPECIALTY TOOLS LLC·Filed 2016·Granted Jun 27, 2017·0 cites·6 claims
- 1344US9677351B2Method and apparatus for anchoring casing and other tubular goodsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Granted Jun 13, 2017·0 cites·19 claims
- 1439US2013292135A1Method and Apparatus for Launching Objects in Dual Gradient SystemsBLACKHAWK SPECIALTY TOOLS LLC·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →