Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7407611 | Elastomer mixtures for rubber manufacture | Federico Innerebner, Erhard Krumpholz, Christoph Naf, Achim-Philipp Sturm, Roland Halter | 2008-08-05 |
| 6520671 | Rotatable hopper having twin screws | Roland Halter, Achim-Philipp Sturm | 2003-02-18 |