Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5921089 | Method for the transport and storage of phenol | Werner Kleinloh, Otto Schnurr, Tony van Osselaer, Claus Wulff | 1999-07-13 |
| 5908913 | Process for the continuous production of polyurethane and polyurethane urea prepolymers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Hans Wagner +1 more | 1999-06-01 |
| 5900501 | Process for the continuous production of aryl carbonates | Pieter Ooms, Hans-Josef Buysch, Steffen Kuhling | 1999-05-04 |
| 5852157 | Process for the production of polycarbonate agglomerate | Clemens Casper, Klemens Kohlgrüber, Hugo Obermann | 1998-12-22 |
| 5830977 | Process for the isolation of partially crystalline polycarbonate powder | Claus Wulff, Clemens Casper, Klemens Kohlgrüber, Hugo Obermann, Steffen Kuhling | 1998-11-03 |
| 5831111 | Process for the continuous production of aryl carbonates | Pieter Ooms, Eric Bischof, Hans-Josef Buysch, Steffen Kuhling, Wolfgang Jakob +2 more | 1998-11-03 |
| 5786445 | Process for drying polymeric powders and polymeric agglomerates | Claus Wulff, Thomas Bamberger, Klemens Kohlgrüber, Hugo Obermann, Stefaan De Vos +3 more | 1998-07-28 |
| 5767224 | Two-step process for the production of thermoplastic polycarbonate | Steffen Kuhling, Klaus Schebesta, Uwe Hucks, Martin Ullrich, Heinrich Schuchardt +4 more | 1998-06-16 |
| 5756641 | Process for producing thermoplastic polycarbonate | Steffen Kuhling, Uwe Hucks, Thomas Fischer | 1998-05-26 |
| 5739258 | Process for preparing diaryl carbonates and the polycarbonates obtainable therefrom | Hans-Josef Buysch, Steffen Kuhling, Carsten Hesse, Johann Rechner | 1998-04-14 |
| 5726228 | Use of carbonates as demoulding agents for thermoplastic polycarbonates | Ralf Kaufmann, Wolfgang Ebert, Hartmut Lower, Jurgen Kadelka, Claus Wulff | 1998-03-10 |
| 5710310 | Process for the continuous production of diaryl carbonates | Pieter Ooms, Hans-Josef Buysch, Steffen Kuhling | 1998-01-20 |
| 5684087 | Process for producing thermoplastic granulated polymer material from polymer solutions | Claus Wulff, Clemens Casper, Klemens Kohlgrüber, Thomas Bamberger, Hugo Obermann | 1997-11-04 |
| 5652324 | Process for the production of thermoplastic polycarbonate | Uwe Hucks, Steffen Kuhling, Thomas Fischer, Franz Ferdinand Rhiel | 1997-07-29 |
| 5652313 | Two-stage process for the manufacture of thermoplastic polycarbonate | Steffen Kuhling, Uwe Hucks, Claus Wulff | 1997-07-29 |
| 5360885 | Process for the continuous production of polyurethane and polyurethane urea elastomers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Hans Wagner +1 more | 1994-11-01 |
| 5117048 | Process for the continuous preparation of monoisocyanates or polyisocyanates | Helmut Judat, Eric F. Boonstra, Stefaan De Vos, Rolf-W. Eckermann, Siegbert Humburger | 1992-05-26 |
| 4851570 | Process for the continuous production of mono- and polyisocyanates | Helmut Judat, Siegbert Humburger, Stefaan De Vos, Rolf-W. Eckermann | 1989-07-25 |
| 4380593 | Intumescent compositions | Wulf von Bonin | 1983-04-19 |