Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005247 | Electron beam microscope using electron beam patterns | — | 1999-12-21 |
| 5932966 | Electron sources utilizing patterned negative electron affinity photocathodes | James E. Schneider, Kenneth Costello, Mark A. McCord, R. Fabian W. Pease | 1999-08-03 |
| 5898269 | Electron sources having shielded cathodes | James E. Schneider | 1999-04-27 |
| 5684360 | Electron sources utilizing negative electron affinity photocathodes with ultra-small emission areas | Kenneth Costello | 1997-11-04 |