Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6239185 | Method for producing expanded polyolefin particles | Frank Braun, Klaus Hahn, Manfred Leibach, Isidoor De Grave | 2001-05-29 | $314,000 |
| 5925686 | Production of expanded polyolefin particles | Isidoor De Grave, Klaus Hahn, Joachim Fischer | 1999-07-20 | |
| 5773481 | Polyolefin particle foam | Joachim Fischer, Jens Rieger, Klaus Hahn, Isidoor De Grave | 1998-06-30 | |
| 5703135 | Production of expanded polyolefin beads | Jurgen Schweinzer, Joachim Fischer, Isidoor De Grave | 1997-12-30 |