Issued Patents 2004
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828465 | Method for producing bisphenols | Rolf Lanze, Frieder Heydenreich, Michael Bödiger, Michael Prein | 2004-12-07 |
| 6774268 | Substance mixture containing bisphenol A | Michael Bödiger, Frieder Heydenreich, Michael Prein | 2004-08-10 |
| 6723881 | Method for conditioning ion exchangers | Michael Bödiger, Frieder Heydenreich, Michael Prein, Gerhard Fennhoff, Ulrich Schnegg +3 more | 2004-04-20 |
| 6723885 | Bisphenol production | Frieder Heydenreich, Michael Prein, Michael Bödiger, Gerhard Fennhoff, Johan Vaes | 2004-04-20 |
| 6710211 | Method for the production of bisphenol-a | Frieder Heydenreich, Michael Prein, Michael Bödiger | 2004-03-23 |
| 6695991 | Device for exchanging a die plate of a prilling tower and method for the automatic exchange | Rolf Lanze, Günter Holdenried, Frieder Heydenreich, Tony van Osselaer | 2004-02-24 |
| 6689827 | Transparent impact-resistant modified thermoplastic molding materials | Christian Schade, Claudia Messinger, Klaus Benker, Armin Kurps | 2004-02-10 |
| 6689464 | Method and device for producing bisphenol a prills and bisphenol a prills produced according to this method | Rolf Lanze, Alfred Eitel, Steffen Kuhling, Frieder Heydenreich, Tony van Osselaer +2 more | 2004-02-10 |
| 6682794 | Polycarbonate containers | Klaus Horn, Steffen Kuhling, Ralf Hufen, Rolf Lanze, Michael Prein +3 more | 2004-01-27 |
| 6683223 | Fluidised bisphenol dust | Michael Bödiger, Nikolai Kostyszyn, Rolf Lanze, Frieder Heydenreich, Michael Prein | 2004-01-27 |