Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131561 | Burner with secondary air stability ring | Douglas Myron Maxwell, James L. Ayres, Joseph A. Donoho, Bobby R. Goodman | 2000-10-17 |
| 4499630 | Manual control knob with adjustable pointer assembly | Stephen Harris | 1985-02-19 |