Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962094 | Mechanically sealing closure for receptables | Doris Osterkamp | 1999-10-05 |
| 5376416 | Process for the production of closures for packaging containers | Siegfried Krause | 1994-12-27 |