Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609026 | Engine NOx reduction | Lester P. Berriman, John M. Zabsky, James W. Davis | 1997-03-11 |
| 5224346 | Engine NOx reduction system | Lester P. Berriman, John M. Zabsky, James W. Davis | 1993-07-06 |
| 4806770 | Germicidal toothbrush holder | John M. Zabsky, Virgil E. Littleton | 1989-02-21 |