Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933804 | Radio frequency diplexer | Wilhelm Weitzenberger, Dietmar Sieraczewski | 2005-08-23 |
| 5471860 | Apparatus for straightening and orientating projections or nipples of anodes | Erwin Collet, Paul Haverbeck, Alfred Marquart | 1995-12-05 |
| 5268083 | Apparatus for aligning anode stubs | Erwin Collet | 1993-12-07 |
| 5182869 | Apparatus for cooling spent anodes of electrolytic melting baths | Erwin Collet, Udo Jerxsen | 1993-02-02 |