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 4/02 for steep curling, e.g. with means for decreasing the heat (A45D4/14, A45D4/16 take precedence)
- A45D 4/08 for flat curling, e.g. with means for decreasing the heat (A45D4/14, A45D4/16 take precedence)
- 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
- L'OREAL FR 3,874
- DYSON GB 1,223
- AMOREPACIFIC CORPORATION KR 877
- SEB FR 842
- P&G (PROCTER & GAMBLE COMPANY) US 741
- PHILIPS ELECTRONICS NL 613
- L'OREAL 555
- ELC MANAGEMENT US 554
- YONWOO COMPANY KR 535
- ALBEA SERVICES FR 523