Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813055 | Furnace cooling system and method | Willard K. McClintock, Randy J. Engstrom | 1989-03-14 |
| 4715042 | Furnace cooling system and method | Willard K. McClintock, Randy J. Engstrom | 1987-12-22 |