Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7855189 | N-phenylphosphoric acid triamides, method for the production thereof and their use as agents for regulating or inhibiting enzymatic urea hydrolysis | André Hucke, Hans-Joachim Niclas, Hans-Jurgen Michel, Carola Schuster | 2010-12-21 |
| 6066190 | Combination of active ingredients for inhibiting or controlling nitrification | Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel | 2000-05-23 |
| 5951736 | Combinations of active ingredients for inhibiting or controlling nitrification | Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel | 1999-09-14 |
| 5741345 | Combination of active ingredients for inhibiting or controlling ammonia nitrification in arable topsoil and subsoil | Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel | 1998-04-21 |