Assignee
COLUMBIA TRAILER CO INC
US·13 granted patents·2 pending applications·209 citations·filing 1990–2023
Top patents by PatentIndex Score
15 records- 0185US6581525B2Method and apparatus for transporting and steering a loadCOLUMBIA TRAILER CO INC·Filed 2001·Granted Jun 24, 2003·76 cites·43 claims
- 0277US5080548ATrailer dumperCOLUMBIA TRAILER CO INC·Filed 1990·Granted Jan 14, 1992·27 cites·18 claims
- 0376US11661126B2Method and apparatus for transporting and steering a heavy loadCOLUMBIA TRAILER CO INC·Filed 2019·Granted May 30, 2023·3 cites·20 claims
- 0476US7883309B2Method and apparatus for handling pipeCOLUMBIA TRAILER CO INC·Filed 2008·Granted Feb 8, 2011·13 cites·10 claims
- 0574US10358876B2Method and apparatus for transporting and steering a heavy loadCOLUMBIA TRAILER CO INC·Filed 2016·Granted Jul 23, 2019·3 cites·13 claims
- 0674US10266219B2Lifting jack assembly with rotatable hydraulic cylinder for steering and method of operationCOLUMBIA TRAILER CO INC·Filed 2016·Granted Apr 23, 2019·6 cites·11 claims
- 0773US6019568ASpill gate for trailer tipperCOLUMBIA TRAILER CO INC·Filed 1999·Granted Feb 1, 2000·30 cites·3 claims
- 0872US5509723APortable rotary trailer tipperCOLUMBIA TRAILER CO INC·Filed 1993·Granted Apr 23, 1996·29 cites·15 claims
- 0969US12172718B2Method and apparatus for transporting and steering a heavy loadCOLUMBIA TRAILER CO INC·Filed 2023·Granted Dec 24, 2024·0 cites·17 claims
- 1060US5344271ATrailer dumperCOLUMBIA TRAILER CO INC·Filed 1992·Granted Sep 6, 1994·15 cites·23 claims
- 1156US10800310B2Trailer tipper featuring multi-use tilt sensors for automating leveling and tipping operationsCOLUMBIA TRAILER CO INC·Filed 2018·Granted Oct 13, 2020·1 cites·20 claims
- 1250US6579054B2Shape-modifiable transition chute for trailer tipperCOLUMBIA TRAILER CO INC·Filed 2001·Granted Jun 17, 2003·6 cites·14 claims
- 1342US2007286708A1Method and apparatus for handling pipeCOLUMBIA TRAILER CO INC·Filed 2007·Application pending·0 cites
- 1437US2015122558A1Lifting jack assembly with rotatable hydraulic cylinder for steering and method of operationCOLUMBIA TRAILER CO INC·Filed 2014·Application pending·0 cites
- 1536US10246946B2Method and apparatus for transporting and steering a heavy loadCOLUMBIA TRAILER CO INC·Filed 2016·Granted Apr 2, 2019·0 cites·24 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →