CPC Main Group
C13B 20/00 Purification of sugar juices
Filing statistics
CPC C13B 20/00 belongs to the parent subclass C13B, which recorded 2,549 patent applications worldwide between 2013 and 2023. Annual filings declined from 223 in 2013 to 103 in 2023 (-54%), peaking at 354 applications in 2017. The most active applicants in class C13 are XYLECO (394 applications), TORAY INDUSTRIES (142 applications) and API INTELLECTUAL PROPERTY HOLDINGS (128 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- C13B 20/02 using alkaline earth metal compounds
- C13B 20/08 by oxidation or reduction
- C13B 20/12 using adsorption agents, e.g. active carbon
- C13B 20/14 using ion-exchange materials
- C13B 20/16 by physical means, e.g. osmosis or filtration
- C13B 20/18 by electrical means
Top Applicants
Top 10 applicants by patent filingsfor class C13, 2013–2023, worldwide · Source: EPO PATSTAT
- XYLECO US 394
- TORAY INDUSTRIES JP 142
- API INTELLECTUAL PROPERTY HOLDINGS US 128
- XYLECO 126
- NOVOZYMES DK 119
- UPM-KYMMENE CORPORATION FI 97
- IFPEN (IFP ENERGIES NOUVELLES) FR 87
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 75
- GUANGXI UNIVERSITY 66
- VIRDIA US 63