Pretreatment specially adapted for magnetic separation

Introduced: January 1995

Last revised: January 2006

Full Title

Magnetic separation > Pretreatment specially adapted for magnetic separation

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 1/005 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

2 direct subcodes

Child Classifications

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B03C 1/01 by addition of magnetic adjuvants
B03C 1/015 by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation

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