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IPC Subgroup
A47L 9/1

Filters; Dust separators; Dust removal; Automatic exchange of filters

Introduced: September 1968

Last revised: January 2006

Full Title

Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners > Filters; Dust separators; Dust removal; Automatic exchange of filters

Classification Context

Section:
HUMAN NECESSITIES
Class:
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
Subclass:
DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL

Related Keywords

FILTER(S) for suction cleaners

5 direct subcodes

Child Classifications

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  • A47L 9/12 Dry filters
  • A47L 9/14 Bags or the like; Attachment of, or closures for, bags
  • A47L 9/16 Arrangement or disposition of cyclones or other devices with centrifugal action
  • A47L 9/18 Liquid filters
  • A47L 9/19 Means for monitoring filtering operation

Top Applicants

Top 10 applicants by patent filingsfor class A47, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ZHEJIANG SUPOR 13,571
  2. MIDEA 10,855
  3. JOYOUNG COMPANY 10,106
  4. FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING COMPANY 9,846
  5. LG ELECTRONICS KR 7,657
  6. GREE ELECTRIC APPLIANCES 4,805
  7. GUANGDONG MIDEA ELECTRICAL APPLIANCE COMPANY 4,508
  8. NINGBO FOTILE KITCHENWARE COMPANY 4,300
  9. HAIER SMART HOME 3,964
  10. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,910