Patents Assigned to Wella Operations US, LLC
  • Patent number: 11007130
    Abstract: Method for treating hair comprising the application onto hair of polymeric layer(s) which can removed to a large extent or even totally in an easy manner upon request of the user by using oxidizing composition.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 18, 2021
    Assignee: WELLA OPERATIONS US, LLC
    Inventors: Lars Siegfried Dahne, Mathias Kurt Herrlein, Axel Meyer, Stephen Robert Schofield, Cagri Uzum
  • Patent number: 11000709
    Abstract: Method for treating hair comprising the successive application onto hair of polymeric layers which can be removed to a large extent or even totally in an easy manner upon request of the user by using a composition having a pH of at least 8.5.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 11, 2021
    Assignee: WELLA OPERATIONS US, LLC
    Inventors: Lars Siegfried Dahne, Mathias Kurt Herrlein, Tatjana Schaefer, Stephen Robert Schofield, Cagri Uzum
  • Patent number: 10973754
    Abstract: The instant disclosure generally relates to a dual component hair coloring composition for coloring mammalian or synthetic keratin fibers, the composition comprising composition A comprising a cationic polymer, pigment microparticles and an aqueous medium, and comprising composition B comprising an anionic polymer, aqueous medium and optional cross linking agent. Optionally or alternatively composition B may contain pigment particles. The cationic and anionic polymers are at least partially soluble in the medium and the pigment microparticles are dispersed therein. The hair coloring composition forms a dual layer coating upon application to keratin fibers such as hair and has a substantially permanent pigment lastingness following development (setting); minimally alters the keratin fibers, upon application; and substantially eliminates development time. Methods of using such compositions are also described herein.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: April 13, 2021
    Assignee: WELLA OPERATIONS US, LLC
    Inventors: Mathias Kurt Herrlein, Matija Crne, Simon Paul Godfrey, Graham Mckelvey, Lars Siegfried Dahne, Ingo Weber, Markus Speckbacher, Mandy Hecht
  • Patent number: 10959919
    Abstract: A method for treating hair comprising applying at least one pigment onto hair for providing the basis for colouring hair in a more reproducible and reliable manner independently from a user's initial hair colour.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 30, 2021
    Assignee: Wella Operations US, LLC
    Inventors: Lars Siegfried Dahne, Mathias Kurt Herrlein, Ingo Weber, Markus Speckbacher, Mandy Hecht, Simon Paul Godfrey