Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333582 | Grooved beverage can lid | Siegfried Bloeck, Erich Hofling, Rudolf Luthi | 1982-06-08 |
| 4290294 | Method for producing aerosol can tops | — | 1981-09-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333582 | Grooved beverage can lid | Siegfried Bloeck, Erich Hofling, Rudolf Luthi | 1982-06-08 |
| 4290294 | Method for producing aerosol can tops | — | 1981-09-22 |