Assignee
COLUMBIA STEEL CASTING
19 granted patents·2 pending applications·396 citations·filing 1977–2018
Top patents by PatentIndex Score
21 records- 0189US5956874ATooth assembly and lock systemCOLUMBIA STEEL CASTING·Filed 1998·Granted Sep 28, 1999·86 cites·10 claims
- 0286US9163378B2Pin retainer for dragline pinsCOLUMBIA STEEL CASTING·Filed 2012·Granted Oct 20, 2015·18 cites·8 claims
- 0384US9482315B1Stud end linkCOLUMBIA STEEL CASTING·Filed 2015·Granted Nov 1, 2016·7 cites·20 claims
- 0484US6871486B2Chain link with angularly disposed end portionsCOLUMBIA STEEL CASTING·Filed 2003·Granted Mar 29, 2005·35 cites·32 claims
- 0583US10788101B2Link with swivel ball bushing rotatable in opposing directionsCOLUMBIA STEEL CASTING·Filed 2018·Granted Sep 29, 2020·5 cites·19 claims
- 0682US4134255ADrag chainCOLUMBIA STEEL CASTING·Filed 1977·Granted Jan 16, 1979·37 cites·17 claims
- 0779US5937551ALock system for excavating tooth point and adapterCOLUMBIA STEEL CASTING·Filed 1997·Granted Aug 17, 1999·34 cites·17 claims
- 0874US7155895B2Coupling linkCOLUMBIA STEEL CASTING·Filed 2005·Granted Jan 2, 2007·8 cites·21 claims
- 0972US5988929AEasy-out cable socket wedge and method for use thereofCOLUMBIA STEEL CASTING·Filed 1997·Granted Nov 23, 1999·34 cites·23 claims
- 1070US9816585B1Repair link for twist link and other chain typesCOLUMBIA STEEL CASTING·Filed 2017·Granted Nov 14, 2017·2 cites·21 claims
- 1169US5966849ALock system for excavating tooth point and adapter and for riggingCOLUMBIA STEEL CASTING·Filed 1998·Granted Oct 19, 1999·34 cites·19 claims
- 1267US6170248B1Dog bone chain linkCOLUMBIA STEEL CASTING·Filed 1999·Granted Jan 9, 2001·30 cites·15 claims
- 1364US5956936AElongated chain linkCOLUMBIA STEEL CASTING·Filed 1999·Granted Sep 28, 1999·18 cites·9 claims
- 1463US9103409B2Readily releasable wedge assembly for holding a wire rope in a socketCOLUMBIA STEEL CASTING·Filed 2013·Granted Aug 11, 2015·2 cites·16 claims
- 1560US4060978ADrag chainCOLUMBIA STEEL CASTING·Filed 1977·Granted Dec 6, 1977·16 cites·14 claims
- 1658USD610771SPortion of a dump blockCOLUMBIA STEEL CASTING·Filed 2009·Granted Feb 23, 2010·11 cites·1 claims
- 1746US2011110708A1Interchangeable hoist and drag linkCOLUMBIA STEEL CASTING·Filed 2009·Application pending·0 cites
- 1839US4139237ABreaker barCOLUMBIA STEEL CASTING·Filed 1977·Granted Feb 13, 1979·9 cites·3 claims
- 1938US4253706AMagnetic breaker barCOLUMBIA STEEL CASTING·Filed 1979·Granted Mar 3, 1981·8 cites·16 claims
- 2037US2003213226A1Chain link with angularly disposed end portionsCOLUMBIA STEEL CASTING·Filed 2002·Application pending·0 cites
- 2120USD673590SCrusher mantleCOLUMBIA STEEL CASTING·Filed 2010·Granted Jan 1, 2013·2 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →