Sperna Weiland; Jan Adolf Ernst
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sperna Weiland; Jan Adolf Ernst.The latest application filed is for "assembly comprising a flexible container having a dosing device and dosing device of such assembly".
- Sperna Weiland; Jan Adolf Ernst - Deventer NL
| Patent | Date |
|---|---|
| Assembly comprising a flexible container having a dosing device and dosing device of such assembly Grant 6,357,630 - Sperna Weiland March 19, 2 | 2002-03-19 |
| Assembly comprising a flexible container having a dosing device and dosing device of such assembly Grant 6,253,967 - Sperna Weiland July 3, 2 | 2001-07-03 |
| Pump and pump outlet nozzle Grant 6,026,993 - Sperna Weiland February 22, 2 | 2000-02-22 |
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