Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758006 | Fishing information device and method of using same | Peter Lee LaFleur Walls, Richard Dreher | 2004-07-06 |
| 6676360 | Vehicle restraining device | Norbert Hahn | 2004-01-13 |
| 6584722 | Fishing information device and method of using same | Peter Lee LaFleur Walls, Richard Dreher | 2003-07-01 |
| 6524053 | Manually positioned wheel chocking apparatus | Norbert Hahn | 2003-02-25 |
| 6435794 | Force display master interface device for teleoperation | — | 2002-08-20 |
| 6394738 | Automatic outrigger for a vehicle | — | 2002-05-28 |
| RE37570 | Wheel-activated vehicle restraint system | Norbert Hahn, Hans Van De Wiel, Marcel Boon, Frank De Beer | 2002-03-05 |
| 6311352 | Self-unlatching dock leveler lip with dampened descent | — | 2001-11-06 |
| 6276016 | Safety leg system for dock leveler | — | 2001-08-21 |
| 6238163 | Vehicle restraining device | Norbert Hahn | 2001-05-29 |
| 6092970 | Manually positioned wheel chocking apparatus | Norbert Hahn | 2000-07-25 |
| 6010297 | Vehicle restraint and improvements | Norbert Hahn, Mark G. Petri | 2000-01-04 |
| 5762459 | Wheel-activated vehicle restraint system | Norbert Hahn, Hans Van De Wiel, Marcel Boon, Frank De Beer | 1998-06-09 |
| 5582498 | Wheel activated vehicle restraint | Norbert Hahn | 1996-12-10 |
| 5531557 | Drive screw system with nested mobile supports | — | 1996-07-02 |
| 5440772 | Vehicle-activated safety leg control system for a dock leveler assembly | Norbert Hahn, Michael A. Swessel | 1995-08-15 |
| 5375965 | Vehicle restraining device | Norbert Hahn | 1994-12-27 |
| 5323503 | Lip extension and control device for dock levelers | — | 1994-06-28 |
| 5311628 | Dock leveler with an improved automatic material handling vehicle barrier | Norbert Hahn | 1994-05-17 |
| 5297921 | Releasable locking device | David A. Spence | 1994-03-29 |