Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7467795 | Modifiable game | — | 2008-12-23 |
| 5116764 | Dual-column, dual-detector gas detector and analyzer | Raymond Annino, Michael L. Bartlett, Edwin L. Karas, Dale E. Lueck, Richard Villalobos | 1992-05-26 |