Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309673 | Plant carrier | Alfons Meyer, Hans-Werner Stender, Heinrich G. Hengstermann | 1994-05-10 |
| 4780165 | Method and apparatus for encasing drainage pipes | Alfons Meyer | 1988-10-25 |