Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705163 | Liquid level gauge and spool lock therefor | Adam J. Koehler | 2004-03-16 |
| D428999 | Manhole cover | Charles D. Glab, Adam J. Koehler | 2000-08-01 |
| D428658 | Manhole cover | Charles D. Glab, Adam J. Koehler | 2000-07-25 |
| 6067856 | Liquid level gauge and improved float construction therefor | Adam J. Koehler | 2000-05-30 |
| 5832953 | Overfill shut-off system for liquid storage tanks | Daniel T. McDonell | 1998-11-10 |
| 5649450 | Alarm assembly for product level gauge | Charles D. Glab | 1997-07-22 |