Class C05B : PHOSPHATIC FERTILISERS
Subclass 11/08: 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 using mineral acid using sulfuric acid
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12221342 | Preparation of an aqueous suspension of phosphate material | Nov 09, 18 | Feb 11, 25 | Coatex; OCP SA; |
| 12110601 | Process to convert reduced sulfur species and water into hydrogen and sulfuric acid | Aug 24, 22 | Oct 08, 24 | California Institute of Technology |
| 11891344 | Methods for graded utilization of fluorine and silicon resources in phosphate ores | Apr 05, 23 | Feb 06, 24 | CHTEM LIMITED |
| 11739431 | Process to convert reduced sulfur species and water into hydrogen and sulfuric acid | Aug 24, 22 | Aug 29, 23 | California Institute of Technology |
| 11180860 | Process to convert reduced sulfur species and water into hydrogen and sulfuric acid | May 17, 19 | Nov 23, 21 | California Institute of Technology |
| 11167989 | Method for recovering phosphorus | Aug 22, 16 | Nov 09, 21 | ZENTRUM FÜR SONNENENERGIE-UND WASSERSTOFF-FORSCHUNG BADEN-WÜRTTEMBERG GEMEINNÜTZIGE STIFTUNG |
| 10947164 | Method for manufacturing an ammonium phosphate fertilizer having low cadmium content | Aug 03, 16 | Mar 16, 21 | OCP SA |
| 10793480 | Process for the preparation of potassic fertiliser from alcohol distillery effluent (spent wash) | Feb 26, 18 | Oct 06, 20 | Council of Scientific & Industrial Research |
| 7513927 | Methods of controlling chemical self-heating of organic-containing materials | Dec 19, 03 | Apr 07, 09 | ANUVIA PLANT NUTRIENTS CORPORATION, VITAG, LLC, |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0339,822 | METHODS FOR GRADED UTILIZATION OF FLUORINE AND SILICON RESOURCES IN PHOSPHATE ORES | Apr 05, 23 | Oct 26, 23 | CHTEM LIMITED |
| 2020/0010,376 | A PROCESS FOR THE PREPARATION OF POTASSIC FERTILISER FROM ALCOHOL DISTILLERY EFFLUENT (SPENT WASH) | Feb 26, 18 | Jan 09, 20 | Not available |
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