Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6858758 | Method for producing bisphenols | Werner Verhoeven, Domien Sluyts | 2005-02-22 |
| 6710154 | Polycarbonate substrates | Steffen Kuhling, Paul Viroux, Hugo Plompen, Richard Vansant | 2004-03-23 |
| 6695991 | Device for exchanging a die plate of a prilling tower and method for the automatic exchange | Rolf Lanze, Günter Holdenried, Rainer Neumann, Frieder Heydenreich | 2004-02-24 |
| 6689464 | Method and device for producing bisphenol a prills and bisphenol a prills produced according to this method | Rolf Lanze, Alfred Eitel, Rainer Neumann, Steffen Kuhling, Frieder Heydenreich +2 more | 2004-02-10 |
| 6682794 | Polycarbonate containers | Klaus Horn, Steffen Kuhling, Ralf Hufen, Rolf Lanze, Michael Prein +3 more | 2004-01-27 |
| 6414198 | Method for producing bisphenol-A | Rolf Lanze, Rainer Neumann, Steffen Kuhling, Frieder Heydenreich | 2002-07-02 |
| 6384288 | Method for the production of bis(4-hydroxyaryl)alkanes | Steffen Kuhling, Rolf Lanze, Rainer Neumann, Frieder Heydenreich | 2002-05-07 |
| 6316678 | Method for producing dis(4-hydroxyaryl) alkanes | Steffen Kuhling, Rolf Lanze, Rainer Neumann, Frieder Heydenreich, Gerhard Fennhoff | 2001-11-13 |
| 6294702 | Method for continuous production of dihydroxydiphenylalkanes | Gerhard Fennhof, Hans-Josef Buysch, Gerd Fengler | 2001-09-25 |
| 5959160 | Purification of p,p-bisphenolate solutions | Claus Wulff, Kurt P. Meurer, Roelof Boyens, Jurgen Hinz | 1999-09-28 |
| 5921089 | Method for the transport and storage of phenol | Werner Kleinloh, Otto Schnurr, Claus Wulff, Gottfried Zaby | 1999-07-13 |
| 5786445 | Process for drying polymeric powders and polymeric agglomerates | Claus Wulff, Gottfried Zaby, Thomas Bamberger, Klemens Kohlgrüber, Hugo Obermann +3 more | 1998-07-28 |
| 5756860 | Crystalline adduct of bisphenol A and bisphenol TMC | Kurt P. Meurer, Claus Wulff, Jurgen Hinz | 1998-05-26 |
| 5696295 | Method for the preparation of ultra-pure bisphenol A and the use thereof | Claus Wulff, Kaspar Hallenberger, Heinrich Steude, Kurt P. Meurer, Jurgen Hinz +3 more | 1997-12-09 |
| 5545764 | Process for the continuous production of high purity bisphenol A | Klaus Berg, Claus Wulff, Georg Malamet, Alfred Eitel, Kurt P. Meurer +1 more | 1996-08-13 |
| 4801707 | Process for the production of benzothiazole sulphene amides | Alfredo Wust | 1989-01-31 |
| 4762931 | Process for the work-up of the mother liquors from the preparation of benzothiazole compounds | Gabriel Denecker, Domien Sluyts, Jean-Marie Biot, Jan de Roos, Pol Bamelis | 1988-08-09 |
| 4751301 | Process for preparing benzothiazolesulphenamides | Alfredo Wust | 1988-06-14 |