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CPC Main Group
A45D 4/00

Separate devices designed for heating hair curlers or hair-wavers (hair-drying devices without connection to hair curlers or hair-wavers A45D20/00)

5 direct subcodes

Child Classifications

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  • A45D 4/14 with chemical heat reaction and heat storage
  • A45D 4/16 Independent devices characterised by heating the hair-curling or hair-waving means before use (A45D1/20 takes precedence)
  • A45D 4/18 Supports or suspending means for devices heating hair-curling or hair-waving means while in use

Top Applicants

Top 10 applicants by patent filingsfor class A45, 2013–2023, worldwide · Source: EPO PATSTAT

  1. L'OREAL FR 3,874
  2. DYSON GB 1,223
  3. AMOREPACIFIC CORPORATION KR 877
  4. SEB FR 842
  5. P&G (PROCTER & GAMBLE COMPANY) US 741
  6. PHILIPS ELECTRONICS NL 613
  7. L'OREAL 555
  8. ELC MANAGEMENT US 554
  9. YONWOO COMPANY KR 535
  10. ALBEA SERVICES FR 523