Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690823 | Filtration medium | Hans Olsen | 1997-11-25 |
| 5686815 | Method and apparatus for controlling the charging of a rechargeable battery to ensure that full charge is achieved without damaging the battery | Ebbe Juul-Hansen | 1997-11-11 |
| 5619118 | Method and an apparatus for charging a rechargeable battery | Ebbe Juul-Hansen | 1997-04-08 |