Class C05B : PHOSPHATIC FERTILISERS
Subclass 11/02: Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes Pretreatment
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11167989 | Method for recovering phosphorus | Aug 22, 16 | Nov 09, 21 | ZENTRUM FÜR SONNENENERGIE-UND WASSERSTOFF-FORSCHUNG BADEN-WÜRTTEMBERG GEMEINNÜTZIGE STIFTUNG |
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