Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6755327 | Dispensing pump with deformable pump wall and positive shut-off | Frederick R. Handren | 2004-06-29 |
| 5409146 | Dispensing pump with positive shut-off | Frederick R. Handren | 1995-04-25 |
| 4625898 | Dispensing closure employing living hinge with cams to momentarily deform hinge and recesses to accept cams | — | 1986-12-02 |
| 4377247 | Dispensing closure employing living hinge | Woodrow S. Wilson | 1983-03-22 |
| 4282991 | Dispensing closure seals | — | 1981-08-11 |
| 4220248 | Closure with hinged lid and cam and spring elements holding lid open or closed | Woodrow S. Wilson | 1980-09-02 |
| 4219138 | Dispensing closure utilizing a sealing element supported by a washer spring | — | 1980-08-26 |