Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7345173 | Work-up of the mother liquor obtained in the preparation of high-purity triethylenediamine | Ortmund Lang, Bernd Rumpf, Matthias Frauenkron, Dirk Funhoff, Bernd Stein | 2008-03-18 | |
| 7151177 | Process for the preparation of highly pure triethylene diamine | Ortmund Lang, Bernd Rumpf, Matthias Frauenkron, Bernd Stein | 2006-12-19 | $579,000 |
| 6552194 | Process for the preparation of pure triethylenediamine (TEDA) | Ortmund Lang, Bernd Rumpf, Matthias Frauenkron, Dirk Funhoff, Bernd Stein | 2003-04-22 | $605,000 |