Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5205123 | Infinitely variable differential hydrostatic transmission | — | 1993-04-27 |
| 4503839 | Water preheater system | — | 1985-03-12 |
| 4462514 | Accelerating and decelerating walkway handrail | — | 1984-07-31 |
| 4448347 | Heat pump system using wastewater heat | — | 1984-05-15 |
| 4444302 | Cable drive systems for moving walkways | — | 1984-04-24 |
| 4276976 | Accelerating and decelerating moving walkway with minimal walkway surface irregularities | Charles H. McConnell | 1981-07-07 |
| 4240537 | Accelerating and decelerating handrail | — | 1980-12-23 |
| 4197933 | Linear induction drive system for accelerating and decelerating moving walkway | Charles H. McConnell | 1980-04-15 |