Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222437 | Method for in situ gas production from coal seams | — | 1980-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222437 | Method for in situ gas production from coal seams | — | 1980-09-16 |