Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5421561 | Gas stir devices with refractory material erosion depth indicator and method of making the same | Robert J. Mascara | 1995-06-06 |
| 5330160 | Gas stir plug wear indicator including low melting point component and method of use | Robert J. Mascara | 1994-07-19 |
| 5118016 | Bottom pour tiles with self sealing joint for pouring liquid steel | Eugen Hagen | 1992-06-02 |
| 4257542 | Slide gate for containers holding liquid metal melt | Walther Aller, Dieter Vahlhaus, Gerd Konig | 1981-03-24 |
| 4241905 | Head or slide plate for a molten-metal slide gate | Dieter Beckers | 1980-12-30 |