| 4889704 |
Preparation of hydroxylammonium salts |
Hugo Fuchs, Josef Ritz, Franz-Josef Weiss |
1989-12-26 |
| 4778669 |
Preparation of aqueous solutions of free hydroxylamine |
Hugo Fuchs, Franz-Josef Weiss, Josef Ritz |
1988-10-18 |
| 4737354 |
Preparation of hydroxylamine-O-sulfonic acid |
Hugo Fuchs, Franz-Josef Weiss, Josef Ritz |
1988-04-12 |
| 4725360 |
Working up wastewaters containing hydroxylamine or its salts |
Hugo Fuchs, Franz-Josef Weiss, Josef Ritz |
1988-02-16 |
| 4659683 |
Regeneration of inactive and poisoned platinum catalysts |
Werner Biffar, Otto Hofstadt, Klaus Kartte, Franz-Josef Weiss |
1987-04-21 |
| 4645579 |
Preparation of aqueous hydroxylamine solutions |
Franz-Josef Weiss, Wolfgang Habermann, Peter Hammes, Elmar Frommer, Peter Thoma |
1987-02-24 |
| 4634584 |
Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation |
Otto-Alfred Grosskinsky, Elmar Frommer, Josef Ritz, Franz-Josef Weiss |
1987-01-06 |
| 4629613 |
Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation |
Otto-Alfred Grosskinsky, Elmar Frommer, Josef Ritz, Franz-Josef Weiss |
1986-12-16 |
| 4601800 |
Preparation of aqueous solutions of hydroxylammonium carbonate |
Franz-Josef Weiss, Wolfgang Habermann, Peter Hammes, Josef Ritz, Peter Thoma |
1986-07-22 |
| 4576804 |
Stabilized solutions of hydroxylamine or its salts |
Otto-Alfred Grosskinsky, Elmar Frommer, Josef Ritz, Franz-Josef Weiss |
1986-03-18 |
| 4551318 |
Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation |
Otto-Alfred Grosskinsky, Elmar Frommer, Josef Ritz, Franz-Josef Weiss |
1985-11-05 |
| 4507271 |
Removal of nitrous oxide from gases containing hydrogen, nitric oxide and nitrous oxide |
Frans van Deyck, Franz-Josef Weiss, Roger Verberckt, Benedikt Mangelschots, Paul Pijl |
1985-03-26 |
| 4491567 |
Manufacture of hydroxylammonium salts |
Gunther Rapp, deceased, Rolf Muenster, Brodus E. Caffall, Philip A. Cyr, Thomas M. Jones |
1985-01-01 |
| 4477424 |
Continuous preparation of hydroxylammonium salts |
Otto-Alfred Grosskinsky, Elmar Frommer, Gunther Rapp, deceased |
1984-10-16 |
| 4457906 |
Preparation of hydroxylammonium salts |
Otto-Alfred Grosskinsky, Elmar Frommer, Guenther Rapp |
1984-07-03 |
| 4438084 |
Manufacture of hydroxylammonium salts |
Guenther Rapp, Rolf Muenster |
1984-03-20 |
| 4404176 |
Preparation of hydroxylammonium salts |
Otto-Alfred Grosskinsky, Elmar Frommer, Gunther Rapp, deceased |
1983-09-13 |
| 4387082 |
Removal of nitrous oxide from exit gases containing this compound during the production of hydroxylammonium salts |
Alfred-Otto Grosskinsky, Elmar Frommer, Guenther Rapp, Ruediger Schmitz |
1983-06-07 |
| 4340575 |
Manufacture of hydroxylammonium salts |
Guenther Rapp, Kurt Jockers |
1982-07-20 |
| 4192856 |
Manufacture of hydroxylammonium salts |
Guenther Rapp, Dieter Wolf |
1980-03-11 |
