Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5105959 | Tamper-indicating device | — | 1992-04-21 |
| 5090583 | Tamper-evident, tamper-resistant closure | Richard W. Hoffman, Michael C. Illenberger | 1992-02-25 |
| 4964852 | Douche container and nozzle with intermediate one-way valve | Walter B. Dunning | 1990-10-23 |
| 4887747 | Two-piece, snap-action closure | Efrem M. Ostrowsky | 1989-12-19 |
| 4782985 | Closure for drip and pour dispensing | — | 1988-11-08 |
| 4779766 | Dispensing closure for a container | — | 1988-10-25 |
| 4545495 | Snap action hinge with closed position straight straps | — | 1985-10-08 |
| 4364484 | Child resistant closure | — | 1982-12-21 |