Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6571874 | Method for the in-situ extraction of gas from coal seams | Hans-Joachim Doering | 2003-06-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6571874 | Method for the in-situ extraction of gas from coal seams | Hans-Joachim Doering | 2003-06-03 |