Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993358 | Controllable platform suspension system for treadmill decks and the like and devices therefor | Richard S. Gureghian, J. David Carlson, Robert H. Marjoram, Matthew B. Brown, Mark R. Jolly | 1999-11-30 |
| 5842547 | Controllable brake | J. David Carlson, John C. Holzheimer, Donald R. Prindle, Robert H. Marjoram | 1998-12-01 |