Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694457 | Methods of steering and focusing ion and electron beams | John C. Kelly | 1987-09-15 |
| 4672615 | Ion and electron beam steering and focussing system | John C. Kelly | 1987-06-09 |