Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762899 | Process for desulfurizing a H.sub.2 S-containing gas | Wolfgang Willing | 1998-06-09 |
| 5262135 | Process for producing elemental sulfur from an H.sub.2 S-containing gas | Rainer Lell | 1993-11-16 |
| 5256384 | Activated carbon process for removing hydrogen sulfide from gases | Dietrich Rolke, Peter Cornel, Rainer Lell, Gabriele Neuroth | 1993-10-26 |