Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689323 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-06-23 |
| 10689322 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-06-23 |
| 10640453 | Method of producing diamines and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-05-05 |
| 10640455 | Method of producing diamines and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-05-05 |
| 10633327 | Method of producing diamines and polyamines of the diphenylmethane series at different production capacities | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-04-28 |
| 10626078 | Method of producing diamines and polyamines of the diphenylmethane series at different production capacities | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2020-04-21 |
| 10513487 | Methods for producing chemical products with operation interruptions | Thomas Knauf, Peter Drinda, Stefan Wershofen, Klaus-Gerd Gruner | 2019-12-24 |
| 10125090 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2018-11-13 |
| 10125091 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Klaus-Gerd Gruner | 2018-11-13 |