Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903684 | Air control system for a burner | Thomas Gruber, Ernest J. Zajaczkowski | 1990-02-27 |
| 4850853 | Air control system for a burner | Thomas Gruber, Ernest J. Zajaczkowski | 1989-07-25 |