Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11919994 | Polyurethane foam materials having reduced cold-flow effect and method for producing same | Matthaeus Gossner, Peter Haas, Michael Schedler, Sven Meyer-Ahrens | 2024-03-05 |
| 9701805 | Polyester polyols with long-chain polyether polyol building blocks and use thereof in rigid pur/pir foams | Hartmut Nefzger, Uwe Kuenzel | 2017-07-11 |
| 8334035 | Polyester polyols from terephthalic acid and oligoalkylene oxides | Hartmut Nefzger, Erika Bauer, Uwe Kuenzel, Jürgen Schloβmacher | 2012-12-18 |
| 7994345 | Process for the purification of thiophenes | Stephan Kirchmeyer | 2011-08-09 |