Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8613258 | Window-based flag support | Andrew Weedon | 2013-12-24 |
| 5059959 | Cursor positioning method and apparatus | — | 1991-10-22 |
| 4389608 | Transformerless battery controlled battery charger | Ernest A. Dahl | 1983-06-21 |
| 4388584 | Battery monitoring and charger control system | Ernest A. Dahl | 1983-06-14 |
| 4329406 | Specific gravity transducer and battery performance indicator | Ernest A. Dahl | 1982-05-11 |
| 4284951 | Battery electrolyte level sensor | Ernest A. Dahl | 1981-08-18 |
| 4217645 | Battery monitoring system | Ernest A. Dahl | 1980-08-12 |