Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378788 | Demolition machine | Michael Jobe, John Davidson | 2025-08-05 |
| 6663825 | Method and apparatus for installing or replacing a furnace tap hole insert | Albert J. Kristoff | 2003-12-16 |
| 5294318 | Crustbreaking assembly for aluminum electrolysis cells | Albert J. Kristoff | 1994-03-15 |
| 5179757 | Apparatus for descaling a process vessel | — | 1993-01-19 |
| 5020183 | Cleaning apparatus for a process vessel | — | 1991-06-04 |
| 4878789 | Apparatus for cleaning titanium pots | — | 1989-11-07 |
| 4861112 | Apparatus for cleaning aluminum cells | — | 1989-08-29 |
| 4424956 | Drapable, consumable, heat retention shield for hot metal cars | Arthur F. Trunzo | 1984-01-10 |
| 4424957 | Hot metal car heat retention shield | Arthur F. Trunzo | 1984-01-10 |
| 4233119 | Ascension pipe and elbow cleaning apparatus | Leo J. Meyers | 1980-11-11 |