Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8999015 | Apparatus for upgrading coal and method of using same | Harry E. Bonner, Roger B. Malmquist | 2015-04-07 |
| 8671586 | Apparatus for upgrading coal and method of using same | Harry E. Bonner, Roger B. Malmquist | 2014-03-18 |
| 8371041 | Apparatus for upgrading coal | Harry E. Bonner, Roger B. Malmquist | 2013-02-12 |
| 6325001 | Process to improve boiler operation by supplemental firing with thermally beneficiated low rank coal | — | 2001-12-04 |