Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11542223 | Process for preparing di- and polyamines of the diphenyl methane series | Richard Adamson, Dolan OConnor | 2023-01-03 |
| 11406964 | Heterogeneous catalysts for the synthesis of carbamates | Anton Vidal-Ferran, José Luis Núñez Rico, Javier Perez-Ramirez, Begona Puertolas Lacambra, Amol P. Amrute | 2022-08-09 |
| 10947187 | Method for producing methylene-diphenylene-diisocyanates and polymethylene-polyphenylene-polyisocyanates | Thomas Knauf, Peter Plathen, Dirk Manzel | 2021-03-16 |
| 10858310 | Method for producing isocyanates | Daniela Cozzula, Andreas Ernst, Matthias Leven, Walter Leitner, Thomas Mueller +4 more | 2020-12-08 |
| 10807084 | Silica-based zinc catalysts, their preparation and use in the alkoxycarbonylation of amines | Markus Dugal, Gernot Jaeger, Anton Vidal Ferran, Jose Luis Nuñez Rico | 2020-10-20 |
| 10759736 | Process for the preparation of di- and polyamines of the diphenylmethane series | Richard Adamson, Georg Pirkl | 2020-09-01 |
| 10689323 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-06-23 |
| 10689322 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-06-23 |
| 10640453 | Method of producing diamines and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-05-05 |
| 10640455 | Method of producing diamines and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-05-05 |
| 10633476 | Method for producing a composition comprising polycarbodiimide having improved storage stability | Hans-Detlef Arntz, Ernst Felske | 2020-04-28 |
| 10633327 | Method of producing diamines and polyamines of the diphenylmethane series at different production capacities | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-04-28 |
| 10626078 | Method of producing diamines and polyamines of the diphenylmethane series at different production capacities | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2020-04-21 |
| 10513487 | Methods for producing chemical products with operation interruptions | Thomas Knauf, Peter Drinda, Klaus-Gerd Gruner, Volker Hartjes | 2019-12-24 |
| 10280135 | Method for producing isocyanates | Thomas Knauf, Dirk Manzel, Peter Plathen | 2019-05-07 |
| 10239984 | Process for the production of di- and polyamines of the diphenylmethane series | Jürgen Arras, Javier Perez-Ramirez, Tobias Caesar Keller | 2019-03-26 |
| 10125091 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2018-11-13 |
| 10125090 | Process for preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Volker Hartjes | 2018-11-13 |
| 9988344 | Zinc cluster compounds and their use as catalysts in the reaction of amines with dialkyl carbonates | Thorsten Dreier, Anton Vidal, Robert Haak | 2018-06-05 |
| 9815769 | Process for the preparation of di- and polyamines from the diphenylmethane series | Thomas Knauf, Klaus-Gerd Gruner, Esteve Obis Torruella | 2017-11-14 |
| 9701617 | Process for producing diamines and polyamines of the diphenylmethane series | Heinz Muller, Richard Adamson, Fritz Pohl, Knut Sommer | 2017-07-11 |
| 9695115 | Method for producing isocyanates | Rainer Bruns, Wolfgang Lorenz, Andreas Rausch, Tim Loddenkemper | 2017-07-04 |
| 9593075 | Method for producing isocyanates | Rainer Bruns, Wolfgang Lorenz, Andreas Rausch, Tim Loddenkemper | 2017-03-14 |
| 9475762 | Process for the preparation of urethanes | Andreas Jacob, Stephan Klein, Jörg Sundermeyer, Fuming Mei | 2016-10-25 |
| 9416094 | Process for the preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Wolfgang Lorenz, Richard Adamson, Karsten Becker | 2016-08-16 |