Assignee
LAYNE CHRISTENSEN COMPANY
US·15 granted patents·1 pending application·360 citations·filing 1997–2017
Top patents by PatentIndex Score
16 records- 0196US7378372B2Filter and sorbent for removal of contaminants from a fluidLAYNE CHRISTENSEN COMPANY·Filed 2005·Granted May 27, 2008·74 cites·14 claims
- 0294US7588744B1Method of recovering phosphate for reuse as a fertilizerLAYNE CHRISTENSEN COMPANY·Filed 2009·Granted Sep 15, 2009·39 cites·12 claims
- 0387US6796139B2Method and apparatus for artificial ground freezingLAYNE CHRISTENSEN COMPANY·Filed 2003·Granted Sep 28, 2004·50 cites·4 claims
- 0486US10596580B2Fluid separator deviceLAYNE CHRISTENSEN COMPANY·Filed 2017·Granted Mar 24, 2020·2 cites·20 claims
- 0586US7407587B1Method and sorbent for selective removal of contaminants from fluidsLAYNE CHRISTENSEN COMPANY·Filed 2006·Granted Aug 5, 2008·20 cites·19 claims
- 0684US7988437B1Method and apparatus for installing flexible linings in underground pipesLAYNE CHRISTENSEN COMPANY·Filed 2010·Granted Aug 2, 2011·13 cites·7 claims
- 0781US6247484B1Eave construction for large canopiesLAYNE CHRISTENSEN COMPANY·Filed 2000·Granted Jun 19, 2001·29 cites·20 claims
- 0880US10145188B2Automated rod manipulatorLAYNE CHRISTENSEN COMPANY·Filed 2014·Granted Dec 4, 2018·12 cites·17 claims
- 0970US7438501B2Ground freezing installation accommodating thermal contraction of metal feed pipesLAYNE CHRISTENSEN COMPANY·Filed 2006·Granted Oct 21, 2008·7 cites·14 claims
- 1062USRE37498EAutomotive hail protection and shade canopyLAYNE CHRISTENSEN COMPANY·Filed 1999·Granted Jan 8, 2002·32 cites·15 claims
- 1161US7455779B2Process for selective removal and immobilization of contaminants from spent sorbentsLAYNE CHRISTENSEN COMPANY·Filed 2005·Granted Nov 25, 2008·1 cites·26 claims
- 1256US6120214AProcess for constructing reinforced subterranean columnsLAYNE CHRISTENSEN COMPANY·Filed 1999·Granted Sep 19, 2000·28 cites·19 claims
- 1349US6142232AMethod and apparatus for cleaning wellsLAYNE CHRISTENSEN COMPANY·Filed 1998·Granted Nov 7, 2000·31 cites·10 claims
- 1446US6533035B2Method and apparatus for stimulating well productionLAYNE CHRISTENSEN COMPANY·Filed 2001·Granted Mar 18, 2003·17 cites·12 claims
- 1544US2014374162A1Sonic drill headLAYNE CHRISTENSEN COMPANY·Filed 2014·Application pending·0 cites
- 1615US5988284AMethod and apparatus for enhancing well performanceLAYNE CHRISTENSEN COMPANY·Filed 1997·Granted Nov 23, 1999·5 cites·12 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →