Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883530 | Use of ammonium syngenite as a slow-acting nitrogen fertilizer | Vilmos Czikkely, Johann Jung | 1989-11-28 |
WM
Walter Von Maessenhausen
Overall (All Time): #3,942,558 of 4,157,543Top 95%
1
Patents All Time