Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523253 | Encapsulated medium-voltage electrical load switching apparatus | Kurt Grunberg, Rainer Poth, Peter Werner, Friedrich Schweppe, Kurt Voigtlander | 1985-06-11 |
| 4282036 | Flowable concrete mixture | Ulrich Finsterwalder, Klemens Finsterwalder, Hans Puls | 1981-08-04 |