Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8536398 | Method for purifying supply flows containing aromates by means of zeolites | Ulrich Müller, Ferdinand Straub, Jürgen Dosch | 2013-09-17 |
| 5880166 | Expandable styrene polymers | Guiscard Glück, Klaus Hahn, Karl-Heinz Wassmer, Hermann Gausepohl, Konrad Knoll +1 more | 1999-03-09 |
| 5563178 | Expandable styrene polymers of high heat resistance | Siegmund Besecke, Andreas Deckers, Norbert Guentherberg, Martin Brudermueller, Gerhard Nestler +1 more | 1996-10-08 |
| 5552450 | Production of rigid polyurethane foams | Werner Hinz, Uwe Keppeler, Bernd Guettes | 1996-09-03 |
| 5525637 | Expandable styrene polymers | Klaus Hahn, Andreas Deckers, Wolfgang Loth, Uwe Blumenstein, Hans-Dieter Schwaben +1 more | 1996-06-11 |
| 5525636 | Expandable styrene polymers | Klaus Hahn, Wolfgang Loth, Walter Heckmann, Uwe Blumenstein, Hans-Dieter Schwaben +2 more | 1996-06-11 |
| 5498640 | Expandable thermoplastic polymers containing organic boron-silicon compounds, and a process for their preparation | Michael Witt | 1996-03-12 |
| 5496864 | Expandable styrene polymers | Klaus Hahn, Hans Ho/ nl, Walter Heckmann, Karl-Heinz Wassmer, Erich Klement +1 more | 1996-03-05 |
| 5464881 | Expandable styrene polymers of high heat resistance | Siegmund Besecke, Andreas Deckers, Norbert Guentherberg, Martin Brudermueller, Gerhard Nestler +1 more | 1995-11-07 |
| 5429798 | Deodorization of used foam moldings, in particular fish crates | Michael Witt, Dietrich Scherzer, Klaus Hahn, Wolf-Dieter Back | 1995-07-04 |
| 5340916 | Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols containing hydroxyl groups | Werner Hinz, Ludwig Schuster, Klaus Vorspohl | 1994-08-23 |
| 5192813 | Preparation of hard foams containing urethane groups or urethane and isocyanurate groups by polyisocyanate polyaddition, and polyoxyalkylene-polyols which are suitable therefor | Werner Hinz, Ludwig Schuster, Klaus Vorspohl | 1993-03-09 |
| 4996103 | Composite elements having improved resistance against stress cracking corrosion, most preferably for low temperature housing compartments | Reinhard Leppkes | 1991-02-26 |