Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9290215 | High tonnage trailer combination, trailer components, and method of use | — | 2016-03-22 |
| 8322965 | High tonnage trailer combination and trailer components | — | 2012-12-04 |
| 7520524 | Gooseneck hitch assembly with u-shaped toe and method of use | — | 2009-04-21 |
| 7287947 | Front loading trailer and method of use | — | 2007-10-30 |
| 6419418 | Apparatus and method for spreading material | — | 2002-07-16 |
| 6113338 | Rear loading trailer and method of use | — | 2000-09-05 |
| 6071068 | Dragline bucket transporter and method of use | Harold W. Spielman | 2000-06-06 |
| 5944471 | Dragline bucket transporter and method of use | Harold W. Spielman | 1999-08-31 |
| 5435586 | Tow-high and gooseneck attachment for hauling vehicles | — | 1995-07-25 |