Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818106 | Inert anode assembly | Leroy E. D'Astolfo | 2004-11-16 |
| 6569379 | Ceramic core spacer blocks for high temperature preheat cycles | Daniel Severa, Joseph P. Harenski, Roger W. Kaufold, Patricia A. Stewart, Larry F. Wieserman | 2003-05-27 |
| 6447667 | Thermal shock protection for electrolysis cells | Patricia A. Stewart, Larry F. Wieserman | 2002-09-10 |
| 6220748 | Method and apparatus for testing material utilizing differential temperature measurements | — | 2001-04-24 |
| 5176864 | Lost wax process utilizing a high temperature wax-based material | Linda Gaydosik | 1993-01-05 |