Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9111426 | Recreational smoking monitor system for use in occupied spaces | Christopher E. Engelmann, Kevin Nicholson, Kelvin A. Kosbab, Michael Masek, Jeffrey R. Frank | 2015-08-18 |