Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6677040 | Expanded polypropylene particles | Frank Braun, Guiscard Glück, Klaus Hahn, Hermann Tatzel | 2004-01-13 |
| 6458858 | Biodegradable polyester material particles | Frank Braun, Guiscard Glück, Klaus Hahn, Uwe Witt | 2002-10-01 |
| 6239185 | Method for producing expanded polyolefin particles | Frank Braun, Klaus Hahn, Manfred Leibach, Wolfram Kogel | 2001-05-29 |
| 6060529 | Sound-absorbent foam moldings | Hermann Tatzel | 2000-05-09 |
| 5925686 | Production of expanded polyolefin particles | Wolfram Kogel, Klaus Hahn, Joachim Fischer | 1999-07-20 |
| 5773481 | Polyolefin particle foam | Joachim Fischer, Jens Rieger, Klaus Hahn, Wolfram Kogel | 1998-06-30 |
| 5744505 | Prefoamed polyolefin beads produced by extrusion | Joachim Fischer, Franz-Josef Dietzen, Gerd Ehrmann, Jens Rieger | 1998-04-28 |
| 5703135 | Production of expanded polyolefin beads | Jurgen Schweinzer, Joachim Fischer, Wolfram Kogel | 1997-12-30 |
| 5262446 | Polyolefin foams having a homogeneous cell structure | Wolfram Koegel, Klaus Hahn | 1993-11-16 |
| 5234962 | Polyolefin foams having a homogeneous cell structure | Wolfram Koegel, Klaus Hahn | 1993-08-10 |
| 5208265 | Foam based on an impact copolymer | Joachim Fischer, Onno Graalmann | 1993-05-04 |
| 5077322 | Foams based on an olefin copolymer | Joachim Fischer, Wolfram Koegel, Hermann Tatzel, Onno Graalmann, Juergen Kerth +1 more | 1991-12-31 |
| 5045256 | Expansion of shrunk foam particles of propylene polymers | Udo Haardt, Wolfram Koegel, Fritz E. Krueckau, Hermann Tatzel | 1991-09-03 |
| 4769394 | Expandable styrene polymers and styrene polymer foams | Klaus Hahn | 1988-09-06 |
| 4525484 | Particulate polystyrene containing blowing agent and having improved expandability | Klaus Hahn, Paul Wittmer, Rupert Schick, Adolf Echte | 1985-06-25 |
| 4520135 | Particulate polystyrene containing blowing agent and having improved expandability | Klaus Hahn, Paul Wittmer, Rupert Schick, Adolf Echte | 1985-05-28 |
| 4513105 | Particulate polystyrene containing blowing agent and having improved expandability | Klaus Hahn, Paul Wittmer, Rupert Schick, Adolf Echte | 1985-04-23 |
| 4459373 | Pre-expanded plastic beads based on poly-para-methylstyrene | Klaus Hahn, Rupert Schick | 1984-07-10 |
| 4369227 | Particulate styrene polymers containing blowing agent | Klaus Hahn, Hans Peter Rath, Heinz Krapf, Manfred Walter | 1983-01-18 |