Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332441 | Apparatus for gettering of particles during plasma processing | Michael Barnes, John C. Forster, John H. Keller, James A. O'Neill | 1994-07-26 |
| 5304279 | Radio frequency induction/multipole plasma processing tool | John H. Keller | 1994-04-19 |