Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7960590 | Method for producing ethyleneamines from untreated AAN | Kirsten Dahmen, Alfred Oftring, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2011-06-14 |
| 7960591 | Method for producing triethylenetetramine | Kirsten Dahmen, Alfred Oftring, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2011-06-14 |
| 7915454 | Method for producing ethylenediamine | Alfred Oftring, Kirsten Dahmen, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2011-03-29 |
| 7880035 | Method for producing ethyleneamines | Alfred Oftring, Kirsten Dahmen, Thilo Hahn, Randolf Hugo, Johann-Peter Melder | 2011-02-01 |
| 7880036 | Production method for ethyleneamine mixtures | Kirsten Dahmen, Alfred Oftring, Randolf Hugo, Thilo Hahn, Johann-Peter Melder | 2011-02-01 |