Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6340713 | Expandable styrene polymers containing graphite particles | Guiscard Glück, Klaus Hahn, Dieter Naegele, Frank Braun | 2002-01-22 |
| 6130265 | Method for producing expandable styrene polymers containing graphite particles | Guiscard Glueck, Klaus Hahn, Karl-Heinz Batscheider, Dieter Naegele, Wolfram Husemann +1 more | 2000-10-10 |
| 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 |
| 5596045 | Expandable styrene polymers containing recycled material | Dietrich Scherzer, Wolfram Husemann, Michael Witt, Klaus Hahn, Gerhard Alicke | 1997-01-21 |
| 5258415 | Expandable styrene polymers containing carbon dioxide as blowing agent | Klaus Hahn, Hans Hintz, Anthony G. Schaefer, Michael Riethues, Michael Witt | 1993-11-02 |
| 5229429 | Expandable styrene polymers containing carbon dioxide as blowing agent | Klaus Hahn, Hans Hintz, Anthony G. Schaefer, Michael Riethues, Michael Witt | 1993-07-20 |
| 4728437 | Treatment and disposal of wastewaters containing carbon black and ash | Hans Gettert, Bruno Sander, Siegfried Marquardt, K. Robert Mueller | 1988-03-01 |
| 4623533 | Desulfurization of H.sub.2 S-containing gases | Franz J. Broecker, Hans Gettert | 1986-11-18 |
| 4521387 | Purification of gases containing CO and/or CO.sub.2 | Franz J. Broecker, Hans Gettert | 1985-06-04 |
| 4507274 | Desulfurization of H.sub.2 S-containing gases | Franz J. Broecker, Hans Gettert | 1985-03-26 |
| 4420342 | Method of prevention of deposits in the pipes of waste heat boilers | Hans Gettert | 1983-12-13 |