Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6290768 | Flow-enhanced pigment preparation for offset printing | Hans Joachim Metz, Thomas Wallach | 2001-09-18 |
| 5591257 | Pigment preparations based on monoazo pigments | R udiger Jung, Hans Joachim Metz | 1997-01-07 |
| 5559216 | Single-step process for the preparation of bis-(acetoacetylamino) benzene disazo pigments | Ruediger Jung, Hans Joachim Metz | 1996-09-24 |
| 5428136 | Water-insoluble azo colorants having two azo groups and a 1,4-bis (acetoacetylamino) benzene coupling component | Rudiger Jung, Hans Joachim Metz | 1995-06-27 |
| 5372747 | Modified block polymers, their preparation and their use | Heinz Uhrig | 1994-12-13 |
| 5352281 | Use of azo pigment preparations for solvent-containing packaging intaglio and flexographic printing inks | Hans Joachim Metz, Ruediger Jung, Rainer Winter | 1994-10-04 |
| 4960935 | Bisphenol derivatives, process for their manufacture, and their use as surfactants | Erwin Dietz, Erich Hoffmann | 1990-10-02 |
| 4828622 | Process for preparing highly concentrated aqueous press cakes of solids | Erwin Dietz, Reinhold Deubel | 1989-05-09 |
| 4785082 | Process for preparing a highly concentrated aqueous press cakes of an azo disperse dye from dilute aqueous suspension thereof wherein surfactant is added before the dye is isolated | Erwin Dietz, Reinhold Deubel | 1988-11-15 |
| 4450304 | Polyether dispersants | Helmut Diery, Reinhold Deubel | 1984-05-22 |
| 4403077 | Anionic compounds based on modified novolak oxyalkylates, their _preparation, and their use as foam-free surface-active agents | Heinz Uhrig, Reinhold Deubel | 1983-09-06 |
| 4341716 | Polyether polyamines, the salts thereof, process for their manufacture and their use | Helmut Diery, Wolfgang Wagemann, Reinhold Deubel, Martin Hille | 1982-07-27 |