Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6200699 | Mercury-free primary alkaline cell | Hans-Joachim Feistner | 2001-03-13 |
| 5919588 | Cathode additive for alkaline primary cells | Wolfgang Puin, Christoph Klaus | 1999-07-06 |
| 5049162 | Process for producing a plastic sealing element for a galvanic primary cell | Klaus Ruggeberg | 1991-09-17 |
| 4994333 | Galvanic primary cell | Gerd Jung | 1991-02-19 |
| 4965105 | Insulation sleeve for galvanic primary cells | Klaus Ruggeberg | 1990-10-23 |
| 4957832 | Plastic sealing element for a galvanic primary cell | Klaus Ruggeberg | 1990-09-18 |
| 4650680 | High temperature primary galvanic element | Rolf Brenner, Gerd Jung, Robert Koder | 1987-03-17 |