Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371486 | Method and apparatus for maximizing throughput of indirectly heated rotary kilns | Ralph L. Coates, Kent E. Hatfield | 2016-06-21 |
| 8298406 | Method and apparatus for maximizing throughput of indirectly heated rotary kilns | Ralph L. Coates, Kent E. Hatfield | 2012-10-30 |