Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874723 | Selective etching of tungsten by remote and in situ plasma generation | Rhett B. Jucha, Duane E. Carter, Cecil J. Davis | 1989-10-17 |
| 4863558 | Method for etching tungsten | Rhett B. Jucha, Cecil J. Davis | 1989-09-05 |
| 4849067 | Method for etching tungsten | Rhett B. Jucha, Cecil J. Davis, Duane E. Carter, John I. Jones | 1989-07-18 |