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)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Separate devices designed for heating hair curlers or hair-wavers
CPC: Separate devices designed for heating hair curlers or hair-wavers (hair-drying devices without connection to hair curlers or hair-wavers A45D20/00)
Full Title
Full titles differ between systems:
Separate devices designed for heating hair curlers or hair-wavers
Separate devices designed for heating hair curlers or hair-wavers (hair-drying devices without connection to hair curlers or hair-wavers A45D20/00)
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
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) IPC+CPC Available in IPC and CPC
- A45D 4/08 for flat curling, e.g. with means for decreasing the heat (A45D4/14, A45D4/16 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
- A45D 4/16 Independent devices characterised by heating the hair-curling or hair-waving means before use (A45D1/20 takes precedence) IPC+CPC Available in IPC and CPC
- A45D 4/18 Supports or suspending means for devices heating hair-curling or hair-waving means while in use IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class A45,2013–2023, worldwide · Source: EPO PATSTAT
- L'OREAL FR 3,344
- DYSON GB 1,184
- AMOREPACIFIC CORPORATION KR 858
- SEB FR 807
- PHILIPS ELECTRONICS NL 518
- P&G (PROCTER & GAMBLE COMPANY) US 502
- YONWOO COMPANY KR 500
- LG HOUSEHOLD & HEALTH CARE KR 499
- ELC MANAGEMENT US 488
- ALBEA SERVICES FR 482
Top Applicants (CPC)
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