Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9428978 | Method for shortening an injection pipe for underground coal gasification | Burl Edward Davis | 2016-08-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9428978 | Method for shortening an injection pipe for underground coal gasification | Burl Edward Davis | 2016-08-30 |