Flotation

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
Subclass:: FLOTATION; DIFFERENTIAL SEDIMENTATION

Filing statistics

IPC B03D 1/00 belongs to the parent subclass B03D, which recorded 13,668 patent applications worldwide between 2013 and 2023. Annual filings grew from 912 in 2013 to 1,626 in 2023 (+78%). The most active applicants in class B03 are CHINA UNIVERSITY OF MINING AND TECHNOLOGY (535 applications), CENTRAL SOUTH UNIVERSITY (526 applications) and KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) (510 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

separating ores by FLOTATION

5 direct subcodes

Child Classifications

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B03D 1/001 Flotation agents
B03D 1/02 Froth-flotation processes
B03D 1/08 Subsequent treatment of concentrated product
B03D 1/12 Agent recovery
B03D 1/14 Flotation machines

Top Applicants

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

CHINA UNIVERSITY OF MINING AND TECHNOLOGY 535
CENTRAL SOUTH UNIVERSITY 526
KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 510
OUTOTEC (FINLAND) FI 255
GREE ELECTRIC APPLIANCES 231
LG ELECTRONICS KR 214
JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY 214
BASF (BADISCHE ANILIN & SODA FABRIK) DE 213
SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 208
NORTHEASTERN UNIVERSITY 196