Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262445 | Heat distortion resistant, expandable styrene polymers having a high capacity for expansion | Klaus Hahn, Hans Hintz, Dietmar Wittenberg | 1993-11-16 |
| 5206271 | Expandable styrene polymers, and aromatic-resistant foams produced therefrom | Klaus Hahn, Hans Hintz, Hans Hoenl | 1993-04-27 |
| 5177115 | Oil-resistant, expandable styrene polymers | Hans Hintz, Klaus Hahn, Michael Riethues | 1993-01-05 |
| 5173514 | Heat distortion resistant, expandable styrene polymers having a high capacity of expansion | Klaus Hahn, Hans Hintz, Dietmar Wittenberg | 1992-12-22 |
| 5166221 | Expandable styrene polymers, and aromatic-resistant foams produced therefrom | Klaus Hahn, Hans Hintz, Hans Hoenl | 1992-11-24 |
| 5106684 | Foam sheets of high heat distortion resistance | Reinhold Weber, Gerhard Alicke, Manfred Weilbacher, Klaus Hahn | 1992-04-21 |
| 5104903 | Bead-form expandable styrene polymers having a high expansion capacity | Klaus Hahn, Hans Hintz, Rolf Richter | 1992-04-14 |
| 5100923 | Preparation of expandable styrene polymers | Hans Hintz, Klaus Hahn | 1992-03-31 |
| 5096931 | Expandable styrene polymers | Dietmar Wittenberg, Klaus Hahn, Hans Hintz, Michael P. O'Callaghan, deceased, Michael Riethues | 1992-03-17 |
| 5093375 | Bead-like expandable molding materials having high heat distortion resistance and their preparation | Klaus Hahn, Hans Hintz, Roland Gellert | 1992-03-03 |
| 5093374 | Expandable molding compositions having high heat distortion resistance, and the preparation thereof | Klaus Hahn, Hans Hintz, Dietmar Wittenberg | 1992-03-03 |
| 5071703 | Foam sheets of high heat distortion resistance | Reinhold Weber, Gerhard Alicke, Manfred Weilbacher, Klaus Hahn | 1991-12-10 |
| 5043218 | Flame resistant, expandable styrene polymers and foams, and flame retardants | Klaus Hahn, Hans Hintz, Dietmar Wittenberg, Peter Gleich | 1991-08-27 |
| 5010111 | Flame resistant, expandable styrene polymers and foams, and flame retardants | Klaus Hahn, Hans Hintz, Dietmar Wittenberg, Peter Gleich | 1991-04-23 |
| 4990539 | Preparation of styrene polymer foam particles | Klaus Hahn, Roland Gellert, Wolf-Dieter Back | 1991-02-05 |
| 4990540 | Expandable styrene polymer of high oil resistance and preparation thereof | Klaus Hahn, Hans Hintz, Roland Gellert | 1991-02-05 |
| 4983639 | Expandable styrene polymers and their preparation | Klaus Hahn, Hans Hintz | 1991-01-08 |
| 4980381 | Preparation of bead-form expandable styrene polymers | Hans Hintz, Klaus Hahn, Hans G. Keppler | 1990-12-25 |
| 4973610 | Expandable styrene polymers | Klaus Hahn, Hans Hintz, Karl H. Roehrig | 1990-11-27 |