Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873035 | Stretch trailer with roller mechanism | Steve Keitel, Michael McManigal | 2024-01-16 |
| 11370482 | Hydraulic steering system | Steve Keitel | 2022-06-28 |
| 10953936 | Double stretch trailer | — | 2021-03-23 |
| 10875590 | Modular beam hauler | — | 2020-12-29 |
| 8342319 | Reciprocating slat conveyor | — | 2013-01-01 |
| 8100625 | Conveyor trailer | — | 2012-01-24 |
| 7871232 | Line feed system with indexing cart | — | 2011-01-18 |
| 7090064 | Auxiliary conveyor with adjustable trays | — | 2006-08-15 |
| 6769536 | Expandable over and under line feed system | — | 2004-08-03 |
| 6675946 | Adjustable auxiliary conveyor | — | 2004-01-13 |
| 6269938 | Over/under line feed system | — | 2001-08-07 |
| 5782317 | Transport apparatus for vertically moving objects and method | — | 1998-07-21 |
| 5704481 | Easy open package | — | 1998-01-06 |
| 5314290 | Cargo carrying vehicle having a movable bulkhead located therein | David Edward Lutz | 1994-05-24 |
| 5310305 | Apparatus for loading and unloading objects | — | 1994-05-10 |
| RE34493 | Apparatus for loading and unloading objects | — | 1994-01-04 |
| 5160237 | Apparatus for loading and unloading objects | — | 1992-11-03 |
| 5143508 | Cargo carrying vehicle having a movable bulkhead located therein | David Edward Lutz | 1992-09-01 |
| 5020382 | Apparatus for loading and unloading objects | — | 1991-06-04 |
| 5009564 | Cargo carrying vehicle having a movable bulkhead located therein | David Edward Lutz | 1991-04-23 |
| 4740007 | Truck semi-trailer and full trailer combination in which the semi-trailer and the full trailer can be locked together for backing | David Edward Lutz | 1988-04-26 |
| 4735305 | Load carrying apparatus capable of moving in both a walk mode and a crawl mode | David Edward Lutz | 1988-04-05 |
| 4460064 | Forklift truck capable of raising and lowering itself and a load back and forth between two surfaces at different levels | David Edward Lutz | 1984-07-17 |
| RE31060 | Article handling apparatus | — | 1982-10-19 |
| 4204592 | Loading and unloading apparatus for vehicles | David Edward Lutz | 1980-05-27 |