Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854266 | Cross-flow diffusion furnace | Morris Simson, John H. Fabricius, Ronnie Browne, Robert F. Sarkozy, Chiu K. S. Lai | 1989-08-08 |
| 4829282 | High efficiency high heat output electrical heater assembly | Gary Orbeck | 1989-05-09 |
| 4802441 | Double wall fast cool-down furnace | — | 1989-02-07 |