acting directly on the substance being separated

Introduced: September 1968

Last revised: January 2006

Full Title

Magnetic separation > acting directly on the substance being separated

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:: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS

Filing statistics

IPC B03C 1/02 belongs to the parent subclass B03C, which recorded 74,934 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,063 in 2013 to 8,528 in 2023 (+178%), peaking at 10,145 applications in 2020. 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

11 direct subcodes

Child Classifications

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B03C 1/021 Separation using Meissner effect, i.e. deflection of superconductive particles in a magnetic field
B03C 1/023 Separation using Lorentz force, i.e. deflection of electrically charged particles in a magnetic field
B03C 1/025 High gradient magnetic separators
B03C 1/035 Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap
B03C 1/04 with the material carriers in the form of trays or with tables
B03C 1/1 with cylindrical material carriers
B03C 1/16 with material carriers in the form of belts
B03C 1/23 with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
B03C 1/26 with free falling material
B03C 1/28 Magnetic plugs and dipsticks
B03C 1/3 Combinations with other devices, not otherwise provided for

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