CPC Subgroup
C05F 17/971 for feeding or discharging materials to be treated; for feeding or discharging other material
Full Title
Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation > Apparatus therefor > Constructional parts, e.g. floors, covers or doors > for feeding or discharging materials to be treated; for feeding or discharging other material
2 direct subcodes
Child Classifications
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- C05F 17/979 the other material being gaseous
- C05F 17/986 the other material being liquid
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