Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8968428 | Additives for improving the cold properties of fuel oils | Bettina Siggelkow, Werner Reimann, Matthias Krull, Markus Kupetz, Andre Graf | 2015-03-03 |
| 7815698 | Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and water | Bettina Siggelkow, Werner Reimann, Dirk Leinweber, Renate Braun | 2010-10-19 |
| 7563291 | Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and water | Bettina Siggelkow, Dirk Leinweber, Werner Reimann, Renate Braun | 2009-07-21 |
| 7041738 | Cold flow improvers for fuel oils of vegetable or animal origin | Matthias Krull, Bettina Siggelkow, Martina Hess | 2006-05-09 |