Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6221127 | Method of pyroprocessing mineral ore material for reducing combustion NOx | — | 2001-04-24 |
| 5711018 | Rotary kiln treatment of potliner | Herman J. Hittner, R. Lee Byers, John N. Lees, Jr., Ludmila Dinter-Brown | 1998-01-20 |
| 5630864 | Method of processing ore on a traveling grate | — | 1997-05-20 |
| 5616296 | Waste management facility | Herman J. Hittner, R. Lee Byers, John N. Lees, Jr., Ludmila Dinter-Brown | 1997-04-01 |
| 5476990 | Waste management facility | Herman J. Hittner, R. Lee Byers, John N. Lees, Jr., Ludmila Dinter-Brown | 1995-12-19 |
| 5248330 | Method of pyroprocessing mineral ore material | — | 1993-09-28 |
| 5100314 | Apparatus and process for direct reduction of materials in a kiln | — | 1992-03-31 |
| 5076838 | Process for direct reduction of materials in a kiln | — | 1991-12-31 |