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CPC Subgroup
D06L 4/686

Fugitive optical brightening; Discharge of optical brighteners in discharge paste; Blueing; Differential optical brightening

Full Title

Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs > Optical bleaching or brightening > Fugitive optical brightening; Discharge of optical brighteners in discharge paste; Blueing; Differential optical brightening

1 direct subcode

Child Classifications

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  • D06L 4/693 Blueing with mixtures of dyes; Blueing with mixtures of dyes and optical brighteners

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