IPC Main Group
B03B 5/00 Washing granular, powdered or lumpy materials; Wet separating
Introduced: July 1974
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:
- SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
Filing statistics
IPC B03B 5/00 belongs to the parent subclass B03B, which recorded 22,452 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,224 in 2013 to 2,396 in 2023 (+96%), peaking at 2,862 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
Related Keywords
BATEASBUDDLING-APPARATUSwashing GRANULARJIG(S) for separating materialswashing MINERAL(S)panning gold ORESPANNING gold oreswashing SANDSEPARATING of solids by dry methods using pneumatic tables or jigsWASHING of granular, powdered or lumpy materials
6 direct subcodes
Child Classifications
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- B03B 5/02 using shaken, pulsated or stirred beds as the principal means of separation
- B03B 5/28 by sink-float separation
- B03B 5/48 by mechanical classifiers
- B03B 5/6 by non-mechanical classifiers, e.g. slime tanks
- B03B 5/62 by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B 5/68 by water impulse
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