Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888882 | Method and apparatus for drying a particulate material such as bark | — | 1989-12-26 |
| 4878441 | Apparatus and process for generating steam from wet fuel | — | 1989-11-07 |
| 4877080 | Process and apparatus for cooling a fluid | — | 1989-10-31 |
| 4864830 | Air conditioning process and apparatus | — | 1989-09-12 |
| 4860548 | Air conditioning process and apparatus therefor | — | 1989-08-29 |