CPC Main Group
C05B 13/00 Fertilisers produced by pyrogenic processes from phosphatic materials
3 direct subcodes
Child Classifications
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- C05B 13/02 from rock phosphates (C05B13/06 takes precedence)
- C05B 13/04 from metallic phosphorus compounds, e.g. ferro-phosphorus
- C05B 13/06 Alkali and alkaline earth meta- or polyphosphate fertilisers
Top Applicants
Top 10 applicants by patent filingsfor class C05, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 654
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 452
- YARA INTERNATIONAL NO 434
- SHANDONG SUNWAY LANDSCAPE TECHNOLOGY COMPANY 315
- SHENZHEN BATIAN ECOTYPIC ENGINEERING COMPANY 253
- GUIZHOU UNIVERSITY 251
- GUILIN JIEYU ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY COMPANY 236
- GUANGXI ACADEMY OF AGRICULTURAL SCIENCES 205
- CHINA AGRICULTURAL UNIVERSITY 197
- KOCH AGRONOMIC SERVICES US 194