Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4529468 | Process of heat sealing a closure strip to a can lid | Oldrich Stanek | 1985-07-16 |
| 4462732 | Process for manufacturing a can lid | — | 1984-07-31 |
| 4461605 | Process for manufacturing lids with a closure strip covering at least one pouring hole, in particular such lids for beverage cans | Oldrich Stanek | 1984-07-24 |
| 4363582 | Process for the manufacture of rings for lids for cans | Rudolf Luthi | 1982-12-14 |
| 4333582 | Grooved beverage can lid | Erich Hofling, Rudolf Luthi, Werner Diemi | 1982-06-08 |
| 4253584 | Ring and closure for cans | Rudolf Luthi | 1981-03-03 |