| Classification | Number | Url | PMD | Priority | Assignee | Assignee Loc | Inventor(s) | Inventor Loc(s) | Filing Date | Issued Date |
| classification-0 | 5,882,412 | Vertical two chamber reaction furnace | 5,882,412 | Yes
| Midwest Research Institute | Kansas City, MO | Blaugher; Richard D. | Evergreen, CO | January 13, 1998 | March 16, 1999 |
| classification-0 | 5,747,099 | Two chamber reaction furnace | 5,747,099 | No | Midwest Research Institute | Kansas City, MO | Blaugher; Richard D. | Evergreen, CO | January 5, 1996 | May 5, 1998 |