Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33435 | Ultrasound level detector | Arthur Koblasz, Douglas Alexander | 1990-11-13 |
| 4917155 | Ultrasound level detector and container counter | Arthur Koblasz, Douglas Alexander, Jonathan Kirschner | 1990-04-17 |
| 4559979 | Ultrasound level detector | Arthur Koblasz, Douglas Alexander | 1985-12-24 |