Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9605106 | Polyester polyols made of isophthalic acid and/or terephthalic acid and oligoalkyl oxides | Hartmut Nefzger, Erika Bauer, Jürgen Schlossmacher, Silvia Kasperek | 2017-03-28 |
| 9382371 | Method for producing a foam composite element | Rolf Roers, Peter Haas | 2016-07-05 |
| 8592623 | Method for producing polyester polyols having low amounts of dioxane waste | Rolf Roers, Hartmut Nefzger, Erika Bauer, Torsten Heinemann, Jürgen Schloβmacher | 2013-11-26 |
| 8481606 | Process for the production of polyester polyols with low volumes of dioxane waste | Hartmut Nefzger, Erika Bauer, Jürgen Schloβmacher | 2013-07-09 |
| 7540932 | Apparatus and process for the production of sandwich composite elements | Thomas Rüb | 2009-06-02 |