Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6197097 | Apparatus for cleaning an airstream | Harald Ertl, Johann Goebel | 2001-03-06 |
| 6022399 | Process for the adsorption of organic substances in the air | Harald Ertl, Johann Göbel | 2000-02-08 |