Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6208913 | Chemical injection system | Mark Zeck | 2001-03-27 |
| 6196051 | Apparatus for determining odor levels in gas streams | Glenn Scott Selman, Christopher Lee Skubis | 2001-03-06 |
| 5996396 | Apparatus for determining odor levels in gas streams | Glenn Scott Selman, Christopher Lee Skubis | 1999-12-07 |
| 5406970 | Chemical injection system | Mark Zeck | 1995-04-18 |
| 4688021 | Combined smoke and gas detection apparatus | Robert H. Buck, Kent G. Cowan, John P. Doughty | 1987-08-18 |