Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628147 | Device for keeping a flower pot or the like raised from the bottom of a flower pot concealer or the like | — | 1997-05-13 |
| 4420904 | Device for feeding potted plants | Johannes Liebscher, Peter Keils, Peter Tiwi | 1983-12-20 |