Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5429650 | Apparatus for defusing and scrubbing air streams | Craig O. Hoffmann | 1995-07-04 |
| 5376166 | Apparatus and method for defusing and scrubbing air streams | Craig O. Hoffmann | 1994-12-27 |