Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128221 | Storage battery | Toivo Karn/a, Jukka-Pekka Nieminen, Ahti Kemppi, Esko Savolainen | 1992-07-07 |
| 4973533 | Gas vault structure for a storage battery | Jukka-Pekka Nieminen, Toivo Karna, Ahti Kemppi, Esko Savolainen, Niilo Jaasko | 1990-11-27 |
| 4966346 | Mounting fixture for storage battery | Toivo Karna, Jukka-Pekka Nieminen, Hannu Kahonen | 1990-10-30 |