Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936077 | 1,3-diamino-4-(aminomethyl)—benzene derivatives and colorants containing the said compounds | Hans-Juergen Braun | 2005-08-30 |
| 6887281 | N-heteroarylmethyl-p-phenylenediamine derivatives as well as oxidation dyeing agents containing these compounds | Hans-Juergen Braun | 2005-05-03 |
| 6875873 | 1,4-Diamino-2-(thiazol-2-yl)benzene derivatives, and dyes containing said compounds | Hans-Juergen Braun | 2005-04-05 |
| 6849097 | N-heteroarylmethyl-p-phnylendiamine derivatives and compounds containing oxidationcoloring agents | Hans-Juergen Braun | 2005-02-01 |
| 6849766 | 1,4-diamino-2-alkenylbenzene derivatives, and dyes containing these compounds | Hans-Juergen Braun | 2005-02-01 |
| 6840965 | P-aminophenols and colorants containing said compounds | Hans-Juergen Braun | 2005-01-11 |