Assignee
EARTH TOOL CO LLC
US·64 granted patents·12 pending applications·1,245 citations·filing 1995–2019
Top patents by PatentIndex Score
76 records- 0193US7086808B2Method and apparatus for on-grade boringEARTH TOOL CO LLC·Filed 2002·Granted Aug 8, 2006·52 cites·15 claims
- 0293US6761507B2Method and apparatus for replacement of underground pipeEARTH TOOL CO LLC·Filed 2001·Granted Jul 13, 2004·48 cites·31 claims
- 0390US11131418B2Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipelineEARTH TOOL CO LLC·Filed 2018·Granted Sep 28, 2021·9 cites·31 claims
- 0490US6568488B2Roller pipe bursterEARTH TOOL CO LLC·Filed 2001·Granted May 27, 2003·100 cites·22 claims
- 0589US9611696B2Directional drill hammer pullback deviceEARTH TOOL CO LLC·Filed 2015·Granted Apr 4, 2017·6 cites·20 claims
- 0688US6588515B2Drill bit for directional drillingEARTH TOOL CO LLC·Filed 2001·Granted Jul 8, 2003·23 cites·43 claims
- 0788US6390087B1Drill bit for directional drillingEARTH TOOL CO LLC·Filed 1999·Granted May 21, 2002·39 cites·13 claims
- 0888US6148935AJoint for use in a directional boring apparatusEARTH TOOL CO LLC·Filed 1998·Granted Nov 21, 2000·81 cites·31 claims
- 0987US10969053B2Lead pipe spudding prior to extraction or remediationEARTH TOOL CO LLC·Filed 2018·Granted Apr 6, 2021·3 cites·14 claims
- 1087US9169946B2Directional drill hammer pullback deviceEARTH TOOL CO LLC·Filed 2014·Granted Oct 27, 2015·9 cites·39 claims
- 1187US6755593B2Pipe replacement method and rotary impact mechanism for pipe burstingEARTH TOOL CO LLC·Filed 2002·Granted Jun 29, 2004·38 cites·14 claims
- 1286US10584807B2Extraction of ductile pipeEARTH TOOL CO LLC·Filed 2018·Granted Mar 10, 2020·3 cites·40 claims
- 1383US7175367B2Cable pulling machineEARTH TOOL CO LLC·Filed 2003·Granted Feb 13, 2007·27 cites·23 claims
- 1483US7128499B2Method for extracting underground pipeEARTH TOOL CO LLC·Filed 2005·Granted Oct 31, 2006·16 cites·25 claims
- 1581US7559722B2Method and apparatus for pipe reforming and clearingEARTH TOOL CO LLC·Filed 2007·Granted Jul 14, 2009·11 cites·16 claims
- 1680US9512951B2Pipe slitting apparatusEARTH TOOL CO LLC·Filed 2015·Granted Dec 6, 2016·3 cites·17 claims
- 1778US10246949B2Slip style rod spinner for pipe bursting machineEARTH TOOL CO LLC·Filed 2018·Granted Apr 2, 2019·2 cites·19 claims
- 1878US6450269B1Method and bit for directional horizontal boringEARTH TOOL CO LLC·Filed 2000·Granted Sep 17, 2002·53 cites·17 claims
- 1977US9566653B2Pipe slitterEARTH TOOL CO LLC·Filed 2014·Granted Feb 14, 2017·4 cites·21 claims
- 2077US6263983B1Apparatus for directional drillingEARTH TOOL CO LLC·Filed 1999·Granted Jul 24, 2001·23 cites·19 claims
- 2175US7255516B2Method and apparatus for replacement of underground pipeEARTH TOOL CO LLC·Filed 2005·Granted Aug 14, 2007·13 cites·10 claims
- 2275US6470979B1Sonde housing structureEARTH TOOL CO LLC·Filed 2000·Granted Oct 29, 2002·45 cites·20 claims
- 2375US5782311AMethod and apparatus for installation of underground pipesEARTH TOOL CO LLC·Filed 1997·Granted Jul 21, 1998·66 cites·19 claims
- 2475US5651639AMethod and apparatus for installation of underground pipeEARTH TOOL CO LLC·Filed 1995·Granted Jul 29, 1997·42 cites·17 claims
- 2574US6792820B2Method and accessories for pipe replacementEARTH TOOL CO LLC·Filed 2002·Granted Sep 21, 2004·29 cites·19 claims
- 2674US6260634B1Sonde housing for directional drillingEARTH TOOL CO LLC·Filed 1999·Granted Jul 17, 2001·42 cites·20 claims
- 2773US10161201B2Powered slip actuationEARTH TOOL CO LLC·Filed 2017·Granted Dec 25, 2018·1 cites·18 claims
- 2872US6299382B1Method for installing an underground pipeEARTH TOOL CO LLC·Filed 1996·Granted Oct 9, 2001·30 cites·8 claims
- 2971USD816456SGut hook bladed pipe slitterEARTH TOOL CO LLC·Filed 2017·Granted May 1, 2018·1 cites·1 claims
- 3070US6953095B2Method and system for operating a reversible pneumatic ground piercing toolEARTH TOOL CO LLC·Filed 2005·Granted Oct 11, 2005·12 cites·5 claims
- 3170US6302410B1Rod gripping jawEARTH TOOL CO LLC·Filed 1999·Granted Oct 16, 2001·55 cites·14 claims
- 3269US7500651B2Portable winchEARTH TOOL CO LLC·Filed 2006·Granted Mar 10, 2009·8 cites·11 claims
- 3369US6789635B2Drill bit for directional drilling in cobble formationsEARTH TOOL CO LLC·Filed 2002·Granted Sep 14, 2004·32 cites·33 claims
- 3467US6321858B1Bit for directional drillingEARTH TOOL CO LLC·Filed 2000·Granted Nov 27, 2001·31 cites·20 claims
- 3565US10550989B2Latch assembly for use with an inversion drumEARTH TOOL CO LLC·Filed 2018·Granted Feb 4, 2020·1 cites·20 claims
- 3665US7490814B2Cable pulling machineEARTH TOOL CO LLC·Filed 2007·Granted Feb 17, 2009·3 cites·11 claims
- 3764US7048257B2Winch with telescoping mastEARTH TOOL CO LLC·Filed 2003·Granted May 23, 2006·21 cites·16 claims
- 3864US6581680B1Apparatus for mounting an electronic device for use in directional drillingEARTH TOOL CO LLC·Filed 2002·Granted Jun 24, 2003·23 cites·10 claims
- 3963US6533052B2Drill bit for impact-assisted directional boringEARTH TOOL CO LLC·Filed 2001·Granted Mar 18, 2003·27 cites·12 claims
- 4061US9915109B2Slip style rod spinner for pipe bursting machineEARTH TOOL CO LLC·Filed 2014·Granted Mar 13, 2018·1 cites·17 claims
- 4161US2020056725A1System And Method For Extracting A Buried PipeEARTH TOOL CO LLC·Filed 2019·Application pending·0 cites
- 4260US6655874B2Method and apparatus for slitting flexible pipe in an underground boreEARTH TOOL CO LLC·Filed 2001·Granted Dec 2, 2003·9 cites·22 claims
- 4358US6371223B2Drill head for directional boringEARTH TOOL CO LLC·Filed 2000·Granted Apr 16, 2002·19 cites·24 claims
- 4457US6913091B2Method and apparatus for replacement of underground pipeEARTH TOOL CO LLC·Filed 2003·Granted Jul 5, 2005·16 cites·12 claims
- 4556US7828903B2Method and apparatus for removing tuberculation from sanitary water pipelinesEARTH TOOL CO LLC·Filed 2007·Granted Nov 9, 2010·0 cites·6 claims
- 4656US6273201B1Pneumatic ground piercing tool with movable chisel headEARTH TOOL CO LLC·Filed 2000·Granted Aug 14, 2001·18 cites·27 claims
- 4754US7028785B2Pneumatic impact piercing toolEARTH TOOL CO LLC·Filed 2005·Granted Apr 18, 2006·3 cites·17 claims
- 4854US6390207B2Method and apparatus for directional boring under mixed conditionsEARTH TOOL CO LLC·Filed 2001·Granted May 21, 2002·10 cites·17 claims
- 4954US6269889B1Ground piercing tool with plastic bodyEARTH TOOL CO LLC·Filed 1997·Granted Aug 7, 2001·31 cites·11 claims
- 5053US10415722B2Split ring ram adapter with cam adjustmentEARTH TOOL CO LLC·Filed 2018·Granted Sep 17, 2019·0 cites·17 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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