Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11298304 | Two component hair treatment kit comprising a hair coloring cream and a developer composition comprising a specific tensioactive compound | Johann Aeby | 2022-04-12 |
| 10039701 | Permanent hair colorants based on a cream-like carrier and a combination of tris(hydroxymethyl) aminomethane, at least an amino acid and an oxidative dye | Johann Aeby | 2018-08-07 |
| 8759589 | Methods of synthesizing 2-Methoxymethyl-1,4-benzenediamine | Wolfram Geibel | 2014-06-24 |
| 7405325 | Process for the preparation of 4-hydroxalkylamino-2-nitro-anisoles | Emmanuel Morand, Hans-Jurgen Braun | 2008-07-29 |
| 7393366 | Agents for coloring keratin fibers | Cecile Pasquier, Eric Tinguely, Hans-Jurgen Braun | 2008-07-01 |
| 5702866 | Dihydrazides | Mario Fryberg, Thomas Stauner | 1997-12-30 |
| 5686222 | Dihydrazides | Mario Fryberg, Thomas Stauner | 1997-11-11 |
| 4937349 | Process for the preparation of 3-[2'H-benzotriazol-(2')-yl]-4-hydroxy-benzenesulfonic acids and the salts thereof | Kurt Burdeska | 1990-06-26 |
| 4285497 | Electromagnetically actuated valve | — | 1981-08-25 |
| 4195662 | Electromagnetic valve with electric signal generator | — | 1980-04-01 |