Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646509 | Battery capacity test and electronic system utilizing same | Neil Clair Berglund, Todd J. Rosedahl | 1997-07-08 |
| 5633572 | Back-up power supply with replaceable battery pack | Vernon J. Kleve, Willard J. Olson, Gary Allen Thompson | 1997-05-27 |
| 5617007 | Battery charging method and apparatus using current control | Steven D. Keidl, Jeffrey S. Rotter | 1997-04-01 |