Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741693 | Method and apparatus for calcining material containing volatile constituents | James Docherty, Joseph W. Stubenbort | 1988-05-03 |
| 4669977 | Rotating rabbled roof drying and heating furnace | Beverly E. Johnson | 1987-06-02 |
| 4637795 | Method and apparatus for calcining material containing volatile constituents | James Docherty, Joseph W. Stubenbort | 1987-01-20 |
| 4189312 | Weight ratio mixing of volatile containing carbonaceous materials with materials to be treated by the volatiles evolved therefrom | Ray E. Kranz, John Bradley Harrell | 1980-02-19 |