Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993512 | Method and system for recycling byproduct streams from metal processing operations | Mark S. Mazanek, Dale A. Zuck | 1999-11-30 |
| 5665140 | Method for the production of iron carbide | Mark S. Mazanek | 1997-09-09 |
| 5516358 | Method for the production of iron carbide | Mark S. Mazanek | 1996-05-14 |
| 5258055 | Process and system for recovering zinc and other metal vapors from a gaseous stream | David T. Bunney | 1993-11-02 |
| 4780135 | Process for the detoxification of steel plant wastes | — | 1988-10-25 |
| 4676741 | Radiantly heated furnace | — | 1987-06-30 |
| 4636127 | Conveying screw for furnace | Francisco Olano, John MacDougall | 1987-01-13 |
| 4622905 | Furnacing | John MacDougall | 1986-11-18 |
| 4597564 | Rotary hearth | Richard H. Hanewald | 1986-07-01 |
| 4397964 | Process using fluidized bed catalyst | Umar M. Ahmad | 1983-08-09 |
| 4272463 | Process for producing metal powder | Ian Clark | 1981-06-09 |
| 4196100 | Catalyst useful for methanation and preparation thereof | Umar M. Ahmad | 1980-04-01 |