Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6066190 | Combination of active ingredients for inhibiting or controlling nitrification | Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak | 2000-05-23 |
| 5951736 | Combinations of active ingredients for inhibiting or controlling nitrification | Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak | 1999-09-14 |
| 5741345 | Combination of active ingredients for inhibiting or controlling ammonia nitrification in arable topsoil and subsoil | Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak | 1998-04-21 |