| 7226567 |
Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions |
Gerhard Olbert, Franz Corr, Ludwig Wambach, Ulrich Hammon |
2007-06-05 |
| 6774246 |
Method for producing phthalic anhydride |
Guido Voit, Thomas Heidemann |
2004-08-10 |
| 6570026 |
Method for producing phthalic anhylic anhydride according to specifications |
Werner Peschel, Bernd Bessling, Peter Michael Lorz, Bernhard Ulrich, Jean Werner Knab +2 more |
2003-05-27 |
| 6469183 |
Method of producing phthalic acid anhydride |
Guido Voit |
2002-10-22 |
| 6160161 |
Per(poly)fluorinated polyoxyethylated carbamates |
Hedi Trabelsi, Wolfgang Roehlke, Massimo Napoli, Philippe Lucas, Kenneth Charles Lowe +5 more |
2000-12-12 |
| 5371290 |
Preparation of N,N-dialkarylamines |
Willi Weber, Hans Diem |
1994-12-06 |
| 5191044 |
Preparation of polyisobutene |
Hans Peter Rath, Herwig Hoffmann, Helmut Mach |
1993-03-02 |
| 5173512 |
Method for preparing perfluorinated heterocyclic compounds, and compounds prepared by this method |
Hasso Meinert, Rudolf Fackler, Juergen Mader |
1992-12-22 |
| 5120731 |
Stabilization of perfluorocarbon emulsions, and perfluorinated heterocyclic compounds usable as emulsion-stabilizing additives |
Hasso Meinert, Juergen Mader, Rudolf Fackler, Wolfgang Roehlke, Monika Gennies +1 more |
1992-06-09 |
| 5091064 |
Method for preparing perfluorinated heterocyclic compounds, and compounds prepared by this method |
Hasso Meinert, Rudolf Fackler, Juergen Mader |
1992-02-25 |
| 5065632 |
Flow line weighing device |
— |
1991-11-19 |
| 4974679 |
Load cell |
— |
1990-12-04 |
| 4411818 |
Reactivation of vanadium-containing oxidation catalysts |
Kurt Blechschmitt, Friedrich Wirth |
1983-10-25 |
| 4324694 |
Supported catalysts containing vanadium pentoxide, titanium dioxide, phosphorus, rubidium and/or cesium, with or without zirconium dioxide |
Kurt Blechschmitt, Friedrich Wirth |
1982-04-13 |
| 4282116 |
Supported catalyst containing vanadium and titanium and/or zirconium for the preparation of phthalic anhydride |
Kurt Blechschmitt, Friedrich Wirth |
1981-08-04 |
