Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768444 | Common vent device for positive vent pressure and draft hood equipped gas appliances | James R. Deppisch, Sherwood G. Talbert, Ronald A. Cudnik | 1988-09-06 |
| 4629415 | Flame insert | William G. Sterbik | 1986-12-16 |
| 4525141 | Regulation of blue flame combustion emissions | Roger D. Sheridan | 1985-06-25 |