C05F ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
Introduced: September 1968
Description
C05F encompasses organic fertilisers derived from waste materials, refuse, and other organic sources not classified elsewhere within the fertiliser categories. This subclass covers technologies for processing and converting organic waste streams—such as compost, sewage sludge, animal manure, and industrial organic byproducts—into soil amendments and plant nutrients. The classification includes methods for treating, stabilising, and preparing these materials to improve their agronomic value and safety for agricultural application.
Title
Titles differ between systems:
IPC: ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES , , e.g. FERTILISERS FROM WASTE OR REFUSE
CPC: ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
Full Title
Full titles differ between systems:
ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES , , e.g. FERTILISERS FROM WASTE OR REFUSE
ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
Additional Content IPC
fertiliser (fertiliser material) fertiliser fertilisers fertiliser material fertiliser materials natural or artificial substance containing the chemical elements that improve growth and productiveness of plants.
Of 8 combined children, 7 exist in both systems.
1 codes exist only in IPC.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C05F 1/00 Fertilisers made from animal corpses, or parts thereof +3 CPC IPC+CPC Available in IPC and CPC
- C05F 15/00 Mixtures of fertilisers covered by more than one of main groups; Fertilisers from mixtures of starting materials, all the starting materials being covered by this subclass but not by the same main group since 1990 IPC only IPC only
- C05F 17/00 Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation since 1990 IPC+CPC Available in IPC and CPC
- C05F 5/00 Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, +3 CPC IPC+CPC Available in IPC and CPC
- C05F 7/00 Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C05,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 895
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 387
- GUIZHOU UNIVERSITY 386
- YARA INTERNATIONAL NO 380
- SHENZHEN BATIAN ECOTYPIC ENGINEERING COMPANY 378
- SHANDONG SUNWAY LANDSCAPE TECHNOLOGY COMPANY 327
- GUILIN JIEYU ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY COMPANY 283
- CHINA AGRICULTURAL UNIVERSITY 271
- GUANGXI UNIVERSITY 266
- NANJING AGRICULTURAL UNIVERSITY 231
Top Applicants (CPC)
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