(19)
(11) EP 4 213 682 A1

(12)

(43) Date of publication:
26.07.2023 Bulletin 2023/30

(21) Application number: 21782623.9

(22) Date of filing: 17.09.2021
(51) International Patent Classification (IPC): 
A45D 19/00(2006.01)
A45D 20/48(2006.01)
A45D 34/00(2006.01)
 A45D 19/02(2006.01)
A45D 20/12(2006.01)
(52) Cooperative Patent Classification (CPC):
A45D 19/026; A45D 2034/005; A45D 2019/0033; A45D 19/0041; A45D 20/48; A45D 2200/205; A45D 20/12
(86) International application number:
PCT/US2021/050966
(87) International publication number:
WO 2022/061175 (24.03.2022 Gazette 2022/12)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 18.09.2020 US 202017025598
18.09.2020 US 202017025608
18.09.2020 US 202017025619
05.11.2020 FR 2011369
24.11.2020 FR 2012073
07.01.2021 FR 2100128

(71) Applicants:
  • L'OREAL
    75008 Paris (FR)
  • Kosecoff, David
    San Francisco, CA 94105 (US)

    AL 

(72) Inventors:
  • KOSECOFF, David
    San Francisco, California 94105 (US)
  • VALCESCHINI, Florent
    Clark, New Jersey 07066 (US)
  • AKERELE, Dominic
    Clark, New Jersey 07066 (US)
  • SINCLAIR, Nicholas
    Clark, New Jersey 07066 (US)

(74) Representative: Casalonga 
Casalonga & Partners Bayerstraße 71/73
80335 München
80335 München (DE)

   


(54) HAIR TREATMENT SYSTEM WITH PROXIMITY SENSORS TO DETECT SCALP OR HAIR DISTANCE AND LOCALITY