Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819779 | Combination of treadmill and stair climbing machine | — | 2010-10-26 |
| 7140485 | Lubrication device for endless belt of treadmills | — | 2006-11-28 |
| 7097593 | Combination of treadmill and stair climbing machine | — | 2006-08-29 |
| 6746376 | Folding structure for treadmill | — | 2004-06-08 |
| 6746374 | Folding device for treadmills | — | 2004-06-08 |
| 5036674 | Accumulator mounting method and apparatus | — | 1991-08-06 |
| D306642 | Housing for an outdoor coil of an air conditioning system | Keith V. Eisberg, Curtis D. Wichmann | 1990-03-13 |
| 4748827 | Coil support structure | — | 1988-06-07 |
| 4748828 | Self-draining base pan for an air conditioner | — | 1988-06-07 |