Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859854 | Open grid pulsed ion chamber operating in the linear ion collection region | Edward T. Burgess | 1989-08-22 |
| 4827224 | Phase shifted feedback electrometer for pulsed ion chamber | Edward T. Burgess | 1989-05-02 |