Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747502 | Vented beverage closure | — | 1988-05-31 |
| 4462502 | Threaded closure with liner | Efrem M. Ostrowsky | 1984-07-31 |
| 4349116 | Thermoplastic screw-threaded closure cap | — | 1982-09-14 |
| 4197955 | Tamper-proof closure | — | 1980-04-15 |