Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226256 | Window system for a building | Paul Greisner, Dieter Renz | 1993-07-13 |
| 4713126 | Process for manufacturing negative cadmium electrodes for sealed alkaline battery cells | Jurgen Woidt | 1987-12-15 |