Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581261 | Valve assemblies with internal protective elements and methods of using same | — | 2017-02-28 |
| 9281550 | Wave mode converter | Jeffrey D. Clay | 2016-03-08 |
| 8069722 | Tank gage hatch assembly | Jeffrey D. Clay | 2011-12-06 |
| 7725273 | Apparatus for monitoring height of liquid in storage tank | — | 2010-05-25 |
| 6899129 | Shutoff valve and related methods | — | 2005-05-31 |
| 6898744 | Apparatus and methods for monitoring encoder signals | — | 2005-05-24 |
| 5705733 | Apparatus for monitoring liquid levels and methods for calibrating same | — | 1998-01-06 |
| 5136883 | Liquid level gage system | — | 1992-08-11 |
| 5104056 | Motor assembly | Raymond C. Reip | 1992-04-14 |
| 5048560 | Sealing valve assembly | Raymond G. Reip | 1991-09-17 |
| 4821022 | Float assembly checking system | — | 1989-04-11 |
| 4342996 | Two disc encoder system for monitoring height of liquid in storage tank | — | 1982-08-03 |
| 4275382 | Apparatus for monitoring and controlling vessels containing liquid | — | 1981-06-23 |