Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494298 | High efficiency shoes for a jack arrester | John W. Koshak | 2002-12-17 |
| 5900596 | Hydraulic brake controller | John W. Koshak, Tony S. Huen, James L. Murphy | 1999-05-04 |
| 4749061 | Elevator cab | Karl B. Orndorff | 1988-06-07 |
| 4726449 | Elevator cab and door strike post construction therefor | Karl B. Orndorff, Larry M. Markle | 1988-02-23 |
| 4711322 | Elevator cab | Karl B. Orndorff | 1987-12-08 |
| 4708223 | Emergency lighting for elevator cab | Karl B. Orndorff | 1987-11-24 |
| 4699251 | Elevator cab | Karl B. Orndorff, Larry M. Markle | 1987-10-13 |
| 4635756 | Elevator cab | Edward F. Sherwood, Karl B. Orndorff, Charles M. Dillon | 1987-01-13 |