Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8765009 | Process for preparing nitric acid with a concentration in the range from 50 to 77.8% by weight | Heinz-Josef Kneuper, Jan-Martin Loening, Joerg Torsten Nickel | 2014-07-01 |
| 7994350 | Process for continuously preparing N-ethyl-2-pyrrolidone (NEP) | Helmut Schmidtke, Ralph Versch, Silke Simon, Karl-Heinz Ott, Ronald Drews | 2011-08-09 |