Inventor · Langenfeld, DE

Torsten Lechner

59Patents
2h-index
28Co-inventors
52Inventor score

Filing activity: Apr 14, 2017 → Feb 20, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US10219994B2 Method for the simultaneous permanent shaping and dyeing of keratinic fibers Human Necessities 5 Active
US10918328B2 Method for determining a degree of damage to hair Human Necessities 2 Active
US10213372B2 Method for simultaneously and permanently reshaping and coloring keratin fibers Human Necessities 2 Active
US11291622B2 Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound and a silicon oil Human Necessities 2 Active
US11766390B2 Method for dyeing keratinous material, comprising the use of an organosilicon compound, a colored effect pigment and a film-forming polymer II Human Necessities 2 Active
US11382851B2 Hair dye composition containing at least one organic silicon compound, a direct dye and a film forming hydrophobic polymer Human Necessities 1 Active
US11918665B2 Method for dyeing keratinous material, comprising the use of an organosilicon compound, a colored effect pigment and a sealing reagent I Human Necessities 1 Active
US11701318B2 Process of dyeing keratinous material comprising the use of an organosilicon compound, an effect pigment, and a film-forming polymer I Human Necessities 1 Active
US11744789B2 Method for dyeing keratinous material, comprising the use of an organosilicon compound, a colored effect pigment and a sealing reagent III Human Necessities 1 Active
US11504321B2 Process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, a further coloring compound and a film-forming polymer II Human Necessities 1 Active
US11826586B2 Method for dyeing keratin material, comprising the use of an organic C1-C6-alkoxy-silane and an alkalising agent Human Necessities 1 Active
US10987287B2 Powdered hair colour with percarbonate in a water-soluble film Human Necessities 1 Active
US11890366B2 Method for dyeing keratin material, comprising the use of an organic C1-C6 alkoxy silane and a copolymer of styrene and maleic acid (anhydride) Human Necessities 1 Active
US11938211B2 Process for coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, a further coloring compound and a film-forming polymer I Human Necessities 1 Active
US11992546B2 Process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, and a sealing reagent vi Human Necessities 1 Active
US11896701B2 Method for dyeing keratin material, comprising the use of an organic C1-C6 alkoxy silane and tannic acid Human Necessities 1 Active
US12090222B2 Method for dyeing keratin material, comprising the use of an organosilicon compound, two dyeing compounds and a post-treatment agent Human Necessities 1 Active
US11229587B2 Hydrogen peroxide formulations in barrier layer films with a metallized layer Performing Operations; Transporting 0 Active
US11564618B2 Method and device for determining a degree of thermal damage to hair Physics 0 Active
US10251821B2 Oxidizing colorant Human Necessities 0 Active
US12357554B2 Process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, and a sealing reagent VI Human Necessities 0 Active
US11324676B2 Hydrogen peroxide formulations in barrier layer films with a metalized layer Human Necessities 0 Active
US11033470B2 Hydrogen peroxide formulations in barrier layer films with a metallized layer Chemistry; Metallurgy 0 Active
US11298303B2 System for thickening a dye preparation containing percarbonate Human Necessities 0 Active
US12220470B2 Pigment suspension and cosmetic agent prepared using the pigment suspension Human Necessities 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.