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| 7950170 | Skewed roller on an excavator | Jan 22, 09 | May 31, 11 | NOVATEK IP, LLC |
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| 6839991 | Cylindrical cutting element supported on a chain | May 23, 03 | Jan 11, 05 | VERMEER MANUFACTURING COMPANY |
| 6832443 | Cutting chain | Feb 22, 02 | Dec 21, 04 | The Charles Machine Works, Inc. |
| 6804903 | Excavator with trenching attachment | Apr 22, 03 | Oct 19, 04 | VERMEER MANUFACTURING COMPANY |
| 6421938 | Endless chain type cutter | Dec 16, 94 | Jul 23, 02 | KOBELCO CRANES CO., LTD., AKCHEMICAL CO., LTD., |
| H002020 | Tip and adapter for an earthworking bucket | Oct 29, 99 | May 07, 02 | CATERPILLAR INC. |
| H002196 | Tip and adapter for an earthworking bucket | Oct 29, 99 | May 07, 02 | SYMANTEC CORPORATION |