Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |