Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6312848 | Electrical rechargeable battery in the form of a button cell | Dejan Ilic, Eduard Pytlik, Siegfried Weitbrecht | 2001-11-06 |
| 5803933 | Process for the prodcution of prismatic alkaline accumulator cells | — | 1998-09-08 |
| 5789096 | Gas-tight alkaline accumulator with valve assembly | — | 1998-08-04 |
| 5783329 | Accumulator with plastic casing | — | 1998-07-21 |
| 4882242 | Closed gastight battery, in particular nickel-cadmium | Klaus D. Degen | 1989-11-21 |