Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838342 | Element basket assembly for heat exchanger | — | 1989-06-13 |
| 4813003 | Method of detecting hot spots in a rotary heat exchanger | William C. Cox, Mark T. Casagrande | 1989-03-14 |