Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215953 | Catalyst for the oxidation of sulfur dioxide and method for the production of the catalyst | Wolfgang Honnen, Bernd Engler, Edgar Koberstein | 1993-06-01 |
| 5120695 | Catalyst for purifying exhaust gases from internal combustion engines and gas turbines operated at above the stoichiometric ratio | Reinhold Brand, Bernd Engler, Wolfgang Honnen, Edgar Koberstein | 1992-06-09 |