| 8608843 |
Pigment preparation and ink jet printing ink |
Joerg Maennig, Stefan Trummer, Andreas Kroell, Dieter Proelss, Stefan Engel |
2013-12-17 |
| 8333832 |
Pigment preparation and ink jet printing ink |
Joerg Maennig, Stefan Trummer, Andreas Kroell, Dieter Proelss, Stefan Engel |
2012-12-18 |
| 5213717 |
Apparatus for fumigating waste waters |
Wilhelm P. Doppelfeld, Wilhelm Giechau, Hilmar Roszinski |
1993-05-25 |
| 5122359 |
Process for reprocessing sulfuric acid from phosphorous purification |
Walter Biermann |
1992-06-16 |
| 4735748 |
Process for making phosphonic acid dichlorides |
— |
1988-04-05 |
| 4692281 |
Carboxytetralinephosphonic acids and process for making them |
— |
1987-09-08 |
| 4692282 |
Phenyltetraline-diphosphonic acids and process for making them |
— |
1987-09-08 |
| 4645835 |
Process for making chloroisocyanuric acids |
— |
1987-02-24 |
| 4587334 |
Process for making cyanuric acid |
— |
1986-05-06 |
| 4529559 |
Process for making derivatives of vinylphosphonic acid or vinylpyrophosphonic acid |
— |
1985-07-16 |
| 4525333 |
Process for separating gallium and indium from aqueous solutions |
Gunther Schimmel, Gero Heymer, Werner Krause |
1985-06-25 |
| 4507249 |
Process for making derivatives of vinylphosphonic acid or vinylpyrophosphonic acid |
Werner Krause |
1985-03-26 |
| 4504021 |
Ribbon free wound yarn package and method and apparatus for producing the same |
Heinz Schippers, Erich Lenk, Gerhard Martens, Manfred Mayer, Siegfried Putsch |
1985-03-12 |
| 4486357 |
Process for making vinylphosphonic acid or vinylpyrophosphonic acid |
Werner Krause |
1984-12-04 |
| 4473509 |
Process for making phosphonic anhydrides |
Jurgen Grosse |
1984-09-25 |
| 4468355 |
Process for making 1-hydroxy-alkane-1-phosphonic acids |
Werner Krause |
1984-08-28 |
| 4427603 |
Process for making phosphonic acid ester chlorides |
Jurgen Grosse |
1984-01-24 |
| 4347989 |
Spinning machine for synthetic threads |
Reinhard Worpenberg |
1982-09-07 |
