Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7108737 | Method for the purification of corrosive gases | Ewald Neumann, Wolfgang Himmler, Harald Fritsch, Hans-Jurgen Schmidt, Martin Hostalek | 2006-09-19 | $425,000 |
| 6793905 | Method for producing high-purity hydrochloric acid | Martin Hostalek, Ching-Jung Kan, Chih-Peng Lu | 2004-09-21 | $62,562,000 |
| 6740302 | Method for producing high-purity sulphuric acid | Martin Hostalek, Rolf Hafner, Chih-Peng Lu, Ching-Jung Kan, Ekkehart Seitz +1 more | 2004-05-25 | $166,460,000 |
| 6270055 | Hydraulic shut-off valve | Andreas Szeteli, Martin Benzinger | 2001-08-07 | $173,294,000 |
| 5692631 | Container for transporting, storing and dispensing chemical products | Marie-Anne Tillard, Christian Colin, Winfried Trinkaus, Martin Benzinger | 1997-12-02 | |
| 4335822 | Transport and emptying container | — | 1982-06-22 | $5,760,000 |