Issued Patents All Time
Showing 25 most recent of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12384869 | Process for preparing a polyoxyalkylene carbonate polyol | Elisabeth Vogelsang, Joerg Hofmann, Philipp Sander, Stefan Werda, Mike Schuetze | 2025-08-12 |
| 12227614 | Process for preparing polyoxyalkylene polyester polyols | Frank Kleinig | 2025-02-18 |
| 12091543 | Process for producing polyoxyalkylene-polyol mixtures | Elena Rojo-Wiechel, Elena Frick-Delaittre, Martin Marazita, Reinhard Albers | 2024-09-17 |
| 12054581 | Method for producing a polyoxyalkylene polyester polyol | Elisabeth Vogelsang, Joerg Hofmann, Marina Reithmeier, Philipp Sander, Sascha Froebel | 2024-08-06 |
| 11976165 | Method for producing double metal cyanide catalysts | Joerg Hofmann, Elisabeth Vogelsang, Maria Gleixner | 2024-05-07 |
| 11965056 | Drying agent for moisture-curing compositions | Christoph Thiebes, Florian Stempfle, Ute Nattke | 2024-04-23 |
| 11345775 | Polyurethane foams based on polyethercarbonate polyols | Bert Klesczewski, Jörg Hofmann, Karsten Malsch, Nicole Welsch, Hartmut Nefzger +1 more | 2022-05-31 |
| 10982039 | PUR/PIR rigid foams made of polyaddition oligoesters | Hartmut Nefzger, Torsten Hagen, Rene Abels | 2021-04-20 |
| 10961346 | Method for the preparation of polyoxyalkylene polyols | Ingo Danek | 2021-03-30 |
| 10787550 | Composite components on the basis of hydrophobic polyols | Stefan Lindner, Marc Schütze, Florian Hupka, Dirk Passmann, Peter Nordmann | 2020-09-29 |
| 10457775 | Method for producing high molecular weight polyoxyalkylene polyols | Christian Steinlein, Horst Zwick, Markus Bodenmüller, Stephan Eckelmann, Friedhelm Baer | 2019-10-29 |
| 10253134 | Rigid PUR/PIR foams of isopropylidenediphenol-based polyethers | Hartmut Nefzger, Stephan Schleiermacher | 2019-04-09 |
| 10131743 | Method for working up alkaline polyether polyols | Marco Antonio Marquez-Benitez | 2018-11-20 |
| 9994672 | Hydroxy-aminopolymers and method for producing same | Jörg Hofmann, Hartmut Nefzger | 2018-06-12 |
| 9826734 | Etherified lactate esters, method for the production thereof and use thereof for enhancing the effect of plant protecting agents | Peter Baur, Jörg Hofmann | 2017-11-28 |
| 9757492 | Hydroxy amino polymer and use thereof in polyurea/polyurethane tissue adhesives | Heike Heckroth, Christoph Eggert, Jörg Hofmann, Edward P. Browne, Hartmut Nefzger | 2017-09-12 |
| 9714216 | Use of urethane alcohols for preparation of polyether polyols | Jörg Hofmann, Kai Laemmerhold, Hartmut Nefzger, Monika Heinz, Bert Klesczewski | 2017-07-25 |
| 9580540 | Hydroxy amino polymer and use thereof in polyurea/polyurethane tissue adhesives | Heike Heckroth, Christoph Eggert, Jörg Hofmann, Edward P. Browne, Hartmut Nefzger | 2017-02-28 |
| 9468701 | Isocyanate-functional prepolymer for a biologically degradable fabric adhesive | Heike Heckroth, Christoph Eggert, Jörg Hofmann | 2016-10-18 |
| 9375509 | Isocyanate-functional prepolymer for a biologically degradable fabric adhesive | Heike Heckroth, Christoph Eggert, Jörg Hofmann | 2016-06-28 |
| 9328196 | Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups | Hartmut Nefzger, Jörg Hofmann, Erika Bauer, Bert Klesczewski | 2016-05-03 |
| 9284401 | Process for the preparation of polyether-ester polyols | Reinhard Albers, Frank Otto, Ulrich Leyrer, Don S. Wardius, Keith J. Headley | 2016-03-15 |
| 9238711 | Hydroxylamino polymer and method for the production thereof | Jörg Hofmann, Hartmut Nefzger | 2016-01-19 |
| 9193822 | Process for producing polyester polyols having secondary OH end groups | Hartmut Nefzger, Erika Bauer, Jörg Hofmann, Bert Klesczewski | 2015-11-24 |
| 9169185 | Method for the preparation of polyether polyols | Joerg Hofmann | 2015-10-27 |