Buttner; Johannes
Patent Applications and Registrations
Patent applications and USPTO patent grants for Buttner; Johannes.The latest application filed is for "optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics".
- Buttner; Johannes - Ruhland DE
| Patent | Date |
|---|---|
| Prevention of precipitation from nitrated aromatic crude products Grant 8,637,712 - Allardt , et al. January 28, 2 | 2014-01-28 |
| Optimized Introduction Of The Starting Materials For A Process For Preparing Aromatic Amines By Hydrogenation Of Nitroaromatics App 20120238779 - WATERS; Gerrit ; et al. | 2012-09-20 |
| Prevention Of Precipitation From Nitrated Aromatic Crude Products App 20120197047 - ALLARDT; Holger ; et al. | 2012-08-02 |
| Process For Preparing Toluenediamine By Hydrogenation Of Dinitrotoluene App 20110295039 - Raichle; Andreas ; et al. | 2011-12-01 |
| Method for Producing Dinitrotoluene App 20080242900 - Buttner; Johannes ; et al. | 2008-10-02 |
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