Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| PP23171 | Eichhornia crassipes plant named ‘Johann Schoofs Sen’ | Hermann-Josef Wilhelm | 2012-11-06 |
| PP23156 | Lemna minor plant named ‘Henry Blanke’ | Hermann-Josef Wilhelm | 2012-10-30 |
| PP21304 | Fallopia plant named ‘Igniscum’ | — | 2010-09-21 |
| 5900038 | Cultivation substrate and method of preparing the same | Hermann-Josef Wilhelm | 1999-05-04 |