Issued Patents All Time
Showing 1–25 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12351853 | Urethanases for the enzymatic degradation of polyurethanes | Natalie Bittner, Gesa Behnken, Gernot Jäger, Swantje Behnken, Lukas Reisky | 2025-07-08 |
| 11926701 | Polycarbonate polyols, polyisocyanate prepolymers and polyurethane and polyurethane urea elastomers based thereon | Harald Knaup, Hans-Peter Huber, Andreas Stumpf, Stephan Reiter | 2024-03-12 |
| 11434321 | Flame-retardant polyurethane rigid foams | Persefoni Hilken, Urs Rauwald | 2022-09-06 |
| 11352462 | Flame-retarded rigid polyurethane foams | Persefoni Hilken, Markus Meuresch, Aurel Wolf | 2022-06-07 |
| 11345775 | Polyurethane foams based on polyethercarbonate polyols | Bert Klesczewski, Jörg Hofmann, Karsten Malsch, Nicole Welsch, Klaus Lorenz +1 more | 2022-05-31 |
| 10982039 | PUR/PIR rigid foams made of polyaddition oligoesters | Torsten Hagen, Klaus Lorenz, Rene Abels | 2021-04-20 |
| 10907007 | Polyurethane foams based on polyethercarbonate polyols | Persefoni Hilken, Stefan Lindner, Michael Schedler, Michael Baecker | 2021-02-02 |
| 10836858 | Method for producing polyether carbonate polyols | Jörg Hofmann, Urs Rauwald, Stefanie Braun, Matthias Wohak, Nicole Welsch +3 more | 2020-11-17 |
| 10662314 | Method for producing polyether carbonate polyols | Kai Laemmerhold, Jörg Hofmann | 2020-05-26 |
| 10633481 | Polyurea systems, processes for preparing the same and use thereof for postoperative adhesion barriers | Heike Heckroth, Christian Wamprecht | 2020-04-28 |
| 10519276 | Use of alcohols which contain at least two urethane groups for producing polyether carbonate polyols | Urs Rauwald, Jörg Hofmann, Bert Klesczewski, Aurel Wolf, Jens Langanke | 2019-12-31 |
| 10487175 | Use of alcohols containing at least two urethane groups for preparation of polyether polyols | Jörg Hofmann, Urs Rauwald, Bert Klesczewski | 2019-11-26 |
| 10253134 | Rigid PUR/PIR foams of isopropylidenediphenol-based polyethers | Stephan Schleiermacher, Klaus Lorenz | 2019-04-09 |
| 10125217 | Method for producing polyether carbonate polyols | Jörg Hofmann, Hans-Georg Pirkl, Kai Laemmerhold, Matthias Wohak, Stefanie Braun +3 more | 2018-11-13 |
| 9994672 | Hydroxy-aminopolymers and method for producing same | Klaus Lorenz, Jörg Hofmann | 2018-06-12 |
| 9957352 | Use of urethane alcohols for preparing polyether carbonate polyols | Jörg Hofmann, Monika Heinz, Kai Laemmerhold, Bert Klesczewski, Thomas Ernst Müller +2 more | 2018-05-01 |
| 9920175 | Polyurethane prepreg and composite fiber element produced therefrom | Florian Hupka, Marcel Schornstein | 2018-03-20 |
| 9815965 | Method for producing polyether carbonate polyols | Kai Laemmerhold, Jörg Hofmann | 2017-11-14 |
| 9757492 | Hydroxy amino polymer and use thereof in polyurea/polyurethane tissue adhesives | Heike Heckroth, Christoph Eggert, Jörg Hofmann, Klaus Lorenz, Edward P. Browne | 2017-09-12 |
| 9751279 | Composite elements composed from thermoplastic polymers and polyurethanes, and process for production thereof | Rolf Albach, Harald Knaup, Frank J. Hahn, Petra Venner, Monika Haselbach | 2017-09-05 |
| 9733394 | Method for preparing optical lenses | Dorota Greszta-Franz, Hans-Josef Laas, Jens Krause | 2017-08-15 |
| 9717819 | Polyurea-based fabric glue | Heike Heckroth, Christoph Eggert | 2017-08-01 |
| 9714216 | Use of urethane alcohols for preparation of polyether polyols | Jörg Hofmann, Kai Laemmerhold, Monika Heinz, Bert Klesczewski, Klaus Lorenz | 2017-07-25 |
| 9701805 | Polyester polyols with long-chain polyether polyol building blocks and use thereof in rigid pur/pir foams | Uwe Kuenzel, Lutz Brassat | 2017-07-11 |
| 9605106 | Polyester polyols made of isophthalic acid and/or terephthalic acid and oligoalkyl oxides | Erika Bauer, Johannes Van De Braak, Jürgen Schlossmacher, Silvia Kasperek | 2017-03-28 |