Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7190105 | Sound or ultrasound sensor | Helmut Pfeiffer | 2007-03-13 |
| 7073379 | Arrangement and procedure for the measuring of liquid level | Herbert Schroth | 2006-07-11 |
| 6634228 | Method of measuring level in a vessel | Dietmar Spanke | 2003-10-21 |