Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8321156 | Odor inspection system | — | 2012-11-27 |
| 6595037 | Portable odor detecting and measuring device | — | 2003-07-22 |
| 6018984 | Odor detecting apparatus and method | John S. Hasslen 3rd | 2000-02-01 |
| 4385987 | Water treatment apparatus | Arlen R. Schamber, Denny L. Melin, Ronald L. Christensen, Edward K. Tazzia, Richard W. Hackbarth +2 more | 1983-05-31 |