| 12398104 |
Odorless thiols for permanent waving, straightening and depilatory applications |
Guiru Zhang, Stephanie Lee Davis, David S. Salloum |
2025-08-26 |
|
| 12226515 |
Method for colouring hair including pretreatment |
Lars Siegfried Dahne, Mandy Hecht, Mathias Kurt Herrlein, Katrin Kaestle, Monica Jo Patten |
2025-02-18 |
|
| 11339295 |
Oxidative dye couplers with novel auxochrome substituents and azomethine dyes and leuco forms thereof |
Guiru Zhang, Aaron D. Bailey, Megan E. Bucks |
2022-05-24 |
|
| 11142498 |
Keratin dyeing compounds, compositions containing them, and method and use thereof |
— |
2021-10-12 |
|
| 10688033 |
Hair colouration formulation |
Lars Siegfried Dahne, Gabriella Egri, Mandy Hecht, Mathias Kurt Herrlein, Moritz Klickermann +5 more |
2020-06-23 |
|
| 10494527 |
Cationic direct dyes |
Frank Bachmann, Christian Cremer, Beate Froehling, Guiru Zhang, Peter Marte Torgerson |
2019-12-03 |
|
| 10093807 |
Stable yellow imidazolium compounds |
Guiru Zhang, Garry Steven Garrett |
2018-10-09 |
|
| 10034823 |
Method of coloring hair with washfast blue imidazolium direct dye compounds |
Guiru Zhang, Jielu Zhao |
2018-07-31 |
|
| 9982138 |
Hair color compositions comprising stable violet-blue to blue imidazolium dyes |
Guiru Zhang, Jielu Zhao |
2018-05-29 |
|
| 9943472 |
Acid perspiration resistant fluorescent compounds for treating hair |
Guiru Zhang |
2018-04-17 |
|
| 9918919 |
Method of coloring hair with washfast yellow imidazolium direct dye compounds |
Guiru Zhang, Garry Steven Garrett |
2018-03-20 |
|
| 9913791 |
Method for improving acid perspiration resistance of fluorescent compounds on hair |
Guiru Zhang |
2018-03-13 |
|
| 9872823 |
Method for improving fastness properties of fluorescent compounds on hair |
Guiru Zhang |
2018-01-23 |
|
| 9855202 |
Compositions for dyeing hair with cationic direct dyes |
Guiru Zhang, Peter Marte Torgerson |
2018-01-02 |
|
| 9849072 |
Method of coloring hair with direct dye compounds |
Guiru Zhang, Peter Marte Torgerson |
2017-12-26 |
|
| 9844501 |
Compositions for dyeing hair with cationic direct dyes |
Guiru Zhang, Peter Marte Torgerson |
2017-12-19 |
|
| 9839592 |
Fluorescent compounds for treating hair |
Guiru Zhang |
2017-12-12 |
|
| 9839593 |
Method of coloring hair with direct dye compounds |
Guiru Zhang, Peter Marte Torgerson |
2017-12-12 |
|
| 9758469 |
Process for the preparation of 2-substituted-1,4-benzenediamines and salts thereof |
Garry Steven Garrett, Heike Gertrud Abel, Armin Osan, John Michael Gardlik, Markus Speckbacher +1 more |
2017-09-12 |
|
| 9688609 |
Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine |
Heike Gertrud Abel, Armin Osan, Garry Steven Garrett, John Michael Gardlik, Markus Speckbacher +1 more |
2017-06-27 |
|
| 9309185 |
Process for preparing primary intermediates for dyeing keratin fibers |
John Michael Gardlik, Monica Jo Patten, Garry Steven Garrett |
2016-04-12 |
$68,401,000 |
| 9216945 |
Methods of synthesizing 2-substituted-1,4-benzenediamine |
John Michael Gardlik, Garry Steven Garrett, Guiru Zhang, Robert Edward Shumate, James S. Anderson |
2015-12-22 |
$84,257,000 |
| 9198838 |
Porous, dissolvable solid substrate and surface resident coating comprising water sensitive actives |
Robert Wayne Glenn, Jr., Kathleen Mary Kaufman, James Charles Dunbar, John Michael Gardlik |
2015-12-01 |
$81,965,000 |
| 9012691 |
Process for preparing primary intermediates for dyeing keratin fibers |
John Michael Gardlik, Monica Jo Patten, Garry Steven Garrett |
2015-04-21 |
$71,248,000 |
| 8709100 |
Hair colorant compositions comprising 2-methoxymethyl-1,4-diaminobenzene and 5-amino-4-chloro-o-cresol, methods, and kits comprising the compositions |
Richard Matthew Charles Sutton, Margaret Popp, Stephen Robert Schofield |
2014-04-29 |
$70,163,000 |
