Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645317 | Metal components for picture tubes | Volker Brandenburg, Klaus-Peter Helmetag | 2003-11-11 |
| 4808220 | Process for the preparation of refined ferromanganese | Hans Litterscheidt, Manfred Rahder, Richard A. Weber | 1989-02-28 |
| 4437652 | Vessel for the treatment of molten metal | Richard A. Weber | 1984-03-20 |