Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981335 | Method and plant for the manufacture of building products | Caroline Joyce Bennett, Gregor Vogt | 2011-07-19 |
| 7947209 | Device and method for the production of a water barrier in an unhardened roof tile | Gunter Weiss | 2011-05-24 |
| 7871552 | Device and method for the production of a roof tile with at least one water barrier | Andrea Hensel | 2011-01-18 |