Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601543 | Method of utilizing a methane-containing biogas | Robert Rautenbach, Joachim Gebel, Alexander Schmitt | 2003-08-05 |
| 6595001 | Method for utilization of a methane-containing gas | Robert Rautenbach, Joachim Gebel, Alexander Schmitt | 2003-07-22 |