Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8892222 | Fume extraction system with automatic fume hood positioning | Marvin Simms, Jared Simms, Mark Van Vliet | 2014-11-18 |
| 5036754 | Autotracking fume extraction exhaust hood | Marvin Simms, Jeffrey R. Marcus, Kenneth Scott Unger | 1991-08-06 |