Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097173 | Channel electron multiplier phototube | James L. Knak | 1992-03-17 |
| 4967115 | Channel electron multiplier phototube | James L. Knak | 1990-10-30 |
| 4757229 | Channel electron multiplier | James L. Knak | 1988-07-12 |