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CPC Subclass Not Allocatable
D06B

TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS (mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments D01B)

Description

D06B covers processes and apparatus for treating textiles through contact with liquids, gases, or vapours, including washing, bleaching, dyeing, and chemical finishing operations. This subclass encompasses wet processing methods such as immersion, spraying, and circulation treatment, as well as gaseous treatments like steaming and fumigation. The classification includes machinery for applying treatment media, controlling treatment conditions, and removing excess liquids or gases from textile materials. Related finishing operations involving mechanical deformation (pressing, calendering) are classified elsewhere in D06.

Filing statistics

CPC subclass D06B recorded 26,218 patent applications worldwide between 2013 and 2023. Annual filings grew from 759 in 2013 to 2,139 in 2023 (+182%), peaking at 3,959 applications in 2020. The most active applicants in class D06 are LG ELECTRONICS (7,955 applications), QINGDAO HAIER WASHING MACHINE COMPANY (7,190 applications) and HAIER SMART HOME (5,471 applications).

Source: EPO PATSTAT, worldwide filings

13 direct subcodes

Child Classifications

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  • D06B 13/00 Treatment of textile materials with liquids, gases or vapours with aid of vibration

Top Applicants

Top 10 applicants by patent filingsfor class D06, 2013–2023, worldwide · Source: EPO PATSTAT

  1. LG ELECTRONICS KR 7,955
  2. QINGDAO HAIER WASHING MACHINE COMPANY 7,190
  3. HAIER SMART HOME 5,471
  4. QINGDAO HAIER WASHING MACHINE COMPANY CN 2,962
  5. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 2,870
  6. WUXI LITTLE SWAN COMPANY 2,869
  7. SAMSUNG ELECTRONICS COMPANY KR 2,731
  8. MIELE DE 1,371
  9. WHIRLPOOL CORPORATION US 1,285
  10. ELECTROLUX APPLIANCES SE 1,261