Assignee
WOOLSLAYER CO INC
US·13 granted patents·1 pending application·303 citations·filing 1992–2020
Top patents by PatentIndex Score
14 records- 0196US9016004B2Apparatus for and method of folding a mast or derrickWOOLSLAYER CO INC·Filed 2013·Granted Apr 28, 2015·30 cites·19 claims
- 0296US8720128B2Mast assembly with cylinder nested in substructureWOOLSLAYER CO INC·Filed 2012·Granted May 13, 2014·39 cites·19 claims
- 0394US8353132B1Method and apparatus for erection and disassembly of a sectional mast assemblyWOOLSLAYER CO INC·Filed 2011·Granted Jan 15, 2013·27 cites·5 claims
- 0487US10352106B1Cradle for retention, transportation and rotation of blowout preventerWOOLSLAYER CO INC·Filed 2018·Granted Jul 16, 2019·7 cites·11 claims
- 0586US9488023B2Blowout preventer storage, transport and lift skid assemblyWOOLSLAYER CO INC·Filed 2015·Granted Nov 8, 2016·7 cites·17 claims
- 0684US9415819B2Rig movement and rotation assemblyWOOLSLAYER CO INC·Filed 2014·Granted Aug 16, 2016·11 cites·6 claims
- 0782US6821071B2Automated pipe racking process and apparatusWOOLSLAYER CO INC·Filed 2002·Granted Nov 23, 2004·62 cites·11 claims
- 0879US9580977B2Blowout preventer transport and handling systemWOOLSLAYER CO INC·Filed 2013·Granted Feb 28, 2017·6 cites·9 claims
- 0971US11859448B1Rig movement, rotation and alignment assemblyWOOLSLAYER CO INC·Filed 2020·Granted Jan 2, 2024·1 cites·10 claims
- 1071US5211251AApparatus and method for moving track guided equipment to and from a trackWOOLSLAYER CO INC·Filed 1992·Granted May 18, 1993·55 cites·20 claims
- 1166US9945146B2Cylinder alignment monitoring system for a mast or derrickWOOLSLAYER CO INC·Filed 2015·Granted Apr 17, 2018·4 cites·19 claims
- 1263US6594960B2Method of folding an articulating mastWOOLSLAYER CO INC·Filed 2001·Granted Jul 22, 2003·29 cites·13 claims
- 1360US6910679B1Variable controlled guide device for wireline spoolerWOOLSLAYER CO INC·Filed 2003·Granted Jun 28, 2005·25 cites·7 claims
- 1440US2010150661A1Open face derrickWOOLSLAYER CO INC·Filed 2008·Application pending·0 cites
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