Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6523957 | Flexible coupling for a self-propelled camera dolly | Bill Schultz, David Cornelius, Chris Barker | 2003-02-25 |
| 6520641 | Shooting a motion picture scene with a self-propelled camera dolly | Bill Schultz, David Cornelius, Chris Barker | 2003-02-18 |
| 6264330 | Self-propelled camera dolly | Bill Schultz, David Cornelius, Chris Barker | 2001-07-24 |
| 6149540 | Continuously variable transmission system with engine braking | Mitchell D. Johnson, Gregory G. Lislegard, Michael R. Trihey, Steven D. Corneliusen, Joel H. Anderson +3 more | 2000-11-21 |
| 5331769 | Grinding apparatus and method | — | 1994-07-26 |