Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9060953 | 1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions | Ingo Weber, Armin Osan, Markus Speckbacher | 2015-06-23 |
| 8784505 | 1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions | Ingo Weber, Armin Osan, Markus Speckbacher | 2014-07-22 |
| 8785656 | Telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt | Ingo Weber, Armin Osan, Markus Speckbacher | 2014-07-22 |
| 8759589 | Methods of synthesizing 2-Methoxymethyl-1,4-benzenediamine | Otto Gottel | 2014-06-24 |
| 7195649 | N-aryl-4,5-diaminopyrazoles and dyes containing said compounds | Otto Goettel, Emmanuel Morand | 2007-03-27 |
| 5865855 | Bis-pyrazole aza compounds, processes for making them, and hair dye compositions containing these compounds | Annelie Doehling, Otto Goettel | 1999-02-02 |
| 5587174 | Cosmetic composition for treating skin and hair containing apple wax and methods of making them | G unther Lang, Dieter Hoch, Eugen Konrad, Harald Wendel, Thomas Kripp | 1996-12-24 |
| 5091567 | Process for the preparation of 1-aminomethyl-1-cyclohexaneacetic acid | Johannes Hartenstein, Wolfgang Herrmann, Joachim Witzke | 1992-02-25 |
| 4743686 | Process for the isomerization of asocainol | Wolfgang Herrmann | 1988-05-10 |
| 4477661 | Process for the preparation of 4-hydroxy-3-(heterocyclocarbamoyl)-2H-1,2-benzothiazine-1,1-dioxides | Wolfgang Herrmann, Gerhard Satzinger | 1984-10-16 |