Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198079 | Liquid delivery system of gas mask | — | 2007-04-03 |
| 4915237 | Comprehensive container inspection system | Roger Chang, Donald Darling, Jaime Periera, Mark Filipowski, Tyce Fitzmorris +4 more | 1990-04-10 |
| 4914289 | Article inspection system for analyzing end and adjacent sides | Cap V. Nguyen, Tyce Fitzmorris, Eric Torr Espenhahn, Roger Chang | 1990-04-03 |
| 4731649 | Oblique illumination for video rim inspection | Roger Chang, Donald Darling | 1988-03-15 |
| 4242713 | Triac output asymmetry detector | Raymond H. Lewis, Jr., Edward W. Goodrich | 1980-12-30 |