Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078764 | Air purification apparatus | Rickey S. Lutterbach | 1992-01-07 |
| D316142 | Air purification unit | Rickey S. Lutterbach | 1991-04-09 |
| 4932988 | Air purification apparatus | Rickey S. Lutterbach | 1990-06-12 |