Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4787775 | Arrangement for transmitting force from a sheet made of polymer material onto a supporting surface | — | 1988-11-29 |
| 4552485 | Process and prepressing pipe for laying a pipeline in the earth | — | 1985-11-12 |
| 4499923 | Concrete pipe with an inner lining | — | 1985-02-19 |
| 4289552 | Method for the continuous welding of thermoplastic sheets | — | 1981-09-15 |