Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4548626 | Particulate air filter assembly | Mark William Ackley | 1985-10-22 |
| 4543112 | Sorbent type filter assembly for a respirator and method of making same | Mark William Ackley | 1985-09-24 |