Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9963949 | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification | Burl Edward Davis, Clifford William Mallett | 2018-05-08 |
| 9435184 | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification | Burl Edward Davis, Clifford William Mallett | 2016-09-06 |