Specified materials treated by the flotation agents; Specified applications

Filing statistics

CPC B03D 2203/00 belongs to the parent subclass B03D, which recorded 9,906 patent applications worldwide between 2013 and 2023. Annual filings grew from 518 in 2013 to 1,012 in 2023 (+95%), peaking at 1,136 applications in 2018. The most active applicants in class B03 are CENTRAL SOUTH UNIVERSITY (405 applications), CHINA UNIVERSITY OF MINING AND TECHNOLOGY (310 applications) and KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) (303 applications).

Source: EPO PATSTAT, worldwide filings

6 direct subcodes

Child Classifications

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B03D 2203/001 Agricultural products, food, biogas, algae
B03D 2203/003 Biotechnological applications, e.g. separation or purification of enzymes, hormones, vitamins, viruses
B03D 2203/005 Fine and commodity chemicals
B03D 2203/006 Oil well fluids, oil sands, bitumen
B03D 2203/008 Water purification, e.g. for process water recycling
B03D 2203/02 Ores

Top Applicants

Top 10 applicants by patent filingsfor class B03, 2013–2023, worldwide · Source: EPO PATSTAT

CENTRAL SOUTH UNIVERSITY 405
CHINA UNIVERSITY OF MINING AND TECHNOLOGY 310
KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 303
SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 296
OUTOTEC (FINLAND) FI 252
LG ELECTRONICS KR 234
CIDRA CORPORATE SERVICES US 232
BASF (BADISCHE ANILIN & SODA FABRIK) DE 218
ADEY HOLDINGS (2008) GB 169
FLSMIDTH DK 166