Inventor
KOENEN ANNIKA
DE16 patents
Patents
16 patentsUS11202742B2Dec 21, 2021
Product for lightening hair, containing special oxo-carboxylic acids
HENKEL AG & CO KGAA2 citations71
US10307354B2Jun 4, 2019
Resorcinol derivatives in compositions for simultaneous reshaping and coloring of keratinous fibers
HENKEL AG & CO KGAA2 citations71
US10955344B2Mar 23, 2021
Method and device for determining a degree of damage to hair
HENKEL AG & CO KGAA2 citations69
US11140967B2Oct 12, 2021
Method and data processing device for ascertaining properties of hair colors in a computer-assisted manner
HENKEL AG & CO KGAA1 citations61
US11035732B2Jun 15, 2021
Color chart device with hair clip and method for identifying colors
HENKEL AG & CO KGAA0 citations50
US9655827B2May 23, 2017
Agents for oxidatively dyeing hair containing specific combinations of developers and couplers
HENKEL AG & CO KGAA1 citations50
US9649267B2May 16, 2017
Composition for oxidative colouring of hair comprising specific combinations of developers and couplers
HENKEL AG & CO KGAA0 citations50
US11857332B2Jan 2, 2024
Determination of a degree of elongation of hair using a NIR sensor
HENKEL AG & CO KGAA0 citations48
US11311093B2Apr 26, 2022
Method for determining a cross-manufacturer hair dye recommendation
HENKEL AG & CO KGAA0 citations46
US12076157B2Sep 3, 2024
Method and device for determining a degree of damage of hair, and method for determining a user-specific hair treatment agent
HENKEL AG & CO KGAA0 citations43
US10617618B2Apr 14, 2020
Agent for oxidative dyeing of hair containing anisole derivatives
HENKEL AG & CO KGAA0 citations40
US9656101B2May 23, 2017
Agent for oxidatively dyeing hair containing specific combinations of developers and couplers
HENKEL AG & CO KGAA0 citations40
US10226647B2Mar 12, 2019
Agents for dyeing keratin fibers, containing at least one dimeric, dicationic azo dye and at least one anionic surfactant
HENKEL AG & CO KGAA0 citations39
US9364407B2Jun 14, 2016
Hair dye agent comprising aminopyrimidine derivatives
HENKEL AG & CO KGAA0 citations38
US9132073B2Sep 15, 2015
Oxidation dye precursors
HENKEL AG & CO KGAA0 citations37
US9364408B2Jun 14, 2016
Hair dye agent comprising aminopyrimidine derivatives
HENKEL AG & CO KGAA0 citations32