- All sections
- C - Chemistrymetallurgy
- C05B - Phosphatic fertilisers
- C05B 13/04 - Fertilisers produced by pyrogenic processes from phosphatic materials from metallic phosphorus compounds, e.g. ferro-phosphorus
Patent holdings for IPC class C05B 13/04
Total number of patents in this class: 14
10-year publication summary
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