Zanders; Erich
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zanders; Erich.The latest application filed is for "waste water purification process with batchwise supply of waste water to the activated sludge tank".
- Zanders; Erich - Elsdorf DE
| Patent | Date |
|---|---|
| Waste water purification process with batchwise supply of waste water to the activated sludge tank Grant 5,019,266 - Soeder , et al. May 28, 1 | 1991-05-28 |
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