Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6966544 | Hoist apparatus | Joseph M. Plasz, Mark E. Ubl, Phillip J. Bartelme, Neal W. Becker | 2005-11-22 |
| 6827334 | Lifting arrangement for overhead traveling cranes | Gary E. Volle, Ross Cyril SMITH | 2004-12-07 |
| 5312061 | Clamping mechanism for securing a rope to a winch drum | — | 1994-05-17 |
| 5141085 | Hoist load brake | — | 1992-08-25 |
| 4640152 | Multi-speed planetary transmission | David C. Quick, Gerardus M. Ballendux | 1987-02-03 |
| 4475638 | Transmission brake and clutch | — | 1984-10-09 |
| 4475641 | Double acting hydraulic accumulator for power shift transmission | Gerardus M. Ballendux | 1984-10-09 |