Issued Patents All Time
Showing 51–75 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5985943 | Expandable polystyrene particles | Horst Steinbrecher, Dieter Naegele, Achim Löffler, Manfred Gurtler, Hagen Schmitt +1 more | 1999-11-16 |
| 5925686 | Production of expanded polyolefin particles | Wolfram Kogel, Isidoor De Grave, Joachim Fischer | 1999-07-20 |
| 5908872 | Production of expandable styrene polymers | Guiscard Glück, Achim Löffler, Maria Lorenz | 1999-06-01 |
| 5905096 | Continuous production process of expandable styrene polymer beads | Peter Nikolaus Lay, Swen Ruck, Michael Schiessl, Michael Witt, Hans D. Zettler +5 more | 1999-05-18 |
| 5880166 | Expandable styrene polymers | Guiscard Glück, Rolf Henn, Karl-Heinz Wassmer, Hermann Gausepohl, Konrad Knoll +1 more | 1999-03-09 |
| 5783612 | Expandable styrene polymers | Karl-Heinz Batscheider, Frank Braun, Joachim Rosch | 1998-07-21 |
| 5773481 | Polyolefin particle foam | Joachim Fischer, Jens Rieger, Isidoor De Grave, Wolfram Kogel | 1998-06-30 |
| 5698603 | Expandable styrene polymers containing recycled material | Dietrich Scherzer, Michael Witt, Maria Lorenz | 1997-12-16 |
| 5616624 | Preparation of bead-form expandable styrene polymers having improved expandability | Michael Witt, Dietrich Scherzer, Dieter Naegele | 1997-04-01 |
| 5596045 | Expandable styrene polymers containing recycled material | Dietrich Scherzer, Wolfram Husemann, Michael Witt, Knut Kaempfer, Gerhard Alicke | 1997-01-21 |
| 5591778 | Process for the preparation of expandable polystyrene | Dietrich Scherzer, Anthony G. Schaefer, Bernhard Schmied | 1997-01-07 |
| 5585410 | Bead-form, expandable styrene polymers having a reduced internal water content, and their preparation | Dietrich Scherzer, Michael Riethues, Dieter Naegele, Michael Witt, Wolfram Husemann | 1996-12-17 |
| 5576094 | Foam boards produced using halogen-free blowing agents | Julien N. R. Callens, Alfons J. S. van Biesen, Bernardo Wolff, Gerhard Alicke, Reinhold Weber +1 more | 1996-11-19 |
| 5561170 | Preparation of expandable thermoplastic polymers by post-impregnation | Michael Witt, Maria Lorenz | 1996-10-01 |
| 5525637 | Expandable styrene polymers | Rolf Henn, Andreas Deckers, Wolfgang Loth, Uwe Blumenstein, Hans-Dieter Schwaben +1 more | 1996-06-11 |
| 5525636 | Expandable styrene polymers | Rolf Henn, Wolfgang Loth, Walter Heckmann, Uwe Blumenstein, Hans-Dieter Schwaben +2 more | 1996-06-11 |
| 5496864 | Expandable styrene polymers | Rolf Henn, Hans Ho/ nl, Walter Heckmann, Karl-Heinz Wassmer, Erich Klement +1 more | 1996-03-05 |
| 5429798 | Deodorization of used foam moldings, in particular fish crates | Michael Witt, Dietrich Scherzer, Rolf Henn, Wolf-Dieter Back | 1995-07-04 |
| 5262446 | Polyolefin foams having a homogeneous cell structure | Isidoor De Grave, Wolfram Koegel | 1993-11-16 |
| 5262445 | Heat distortion resistant, expandable styrene polymers having a high capacity for expansion | Uwe Guhr, Hans Hintz, Dietmar Wittenberg | 1993-11-16 |
| 5258415 | Expandable styrene polymers containing carbon dioxide as blowing agent | Knut Kaempfer, Hans Hintz, Anthony G. Schaefer, Michael Riethues, Michael Witt | 1993-11-02 |
| 5234962 | Polyolefin foams having a homogeneous cell structure | Isidoor De Grave, Wolfram Koegel | 1993-08-10 |
| 5229429 | Expandable styrene polymers containing carbon dioxide as blowing agent | Knut Kaempfer, Hans Hintz, Anthony G. Schaefer, Michael Riethues, Michael Witt | 1993-07-20 |
| 5206271 | Expandable styrene polymers, and aromatic-resistant foams produced therefrom | Uwe Guhr, Hans Hintz, Hans Hoenl | 1993-04-27 |
| 5177115 | Oil-resistant, expandable styrene polymers | Hans Hintz, Uwe Guhr, Michael Riethues | 1993-01-05 |