Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9200225 | Method and apparatus for compacting coal for a coal coking process | Michael P. Barkdoll, John Sanor | 2015-12-01 |
| 8152970 | Method and apparatus for producing coke | Michael P. Barkdoll, Donald M. Watkins, Richard Westbrook, Jerome A. Karnowski, Mark Anthony Ball | 2012-04-10 |
| 7497930 | Method and apparatus for compacting coal for a coal coking process | Michael P. Barkdoll, Mark Anthony Ball, Daniel Korrect | 2009-03-03 |