Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5812895 | Camera with negative identification system | Dale R. DuVall, Jerry W. Lindenfelser, Larry D. McClellan, Patrick J. Gilligan, Roger M. Johnson | 1998-09-22 |
| 5429329 | Robotic railroad accident prevention vehicle and associated system elements | Charles C. Wallace | 1995-07-04 |
| 5294950 | Identification system for automated film and order processing including machine and human readable code | Dale R. DuVall, Jerry W. Lindenfelser, Larry D. McClelland, Patrick J. Gilligan, Roger M. Johnson | 1994-03-15 |
| 4821425 | Cylindrical surface profile and diameter measuring tool and method | James R. Currie, Ralph R. Kissel, Charles E. Oliver, Earnest C. Smith, John W. Redmon, Jr. +1 more | 1989-04-18 |