Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413325 | Methods and apparatuses for determining the temperature of an asynchronous motor | Bo A. Elfner | 1983-11-01 |
| 4358734 | Methods and apparatuses for detecting the speed of an asynchronous motor | Bo A. Elfner | 1982-11-09 |
| 4311438 | Method and apparatus for controlling the start of an intermittently operating pump | — | 1982-01-19 |