Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6531304 | Method for modifying the dispersion characteristics of metal organic-prestabilized or pre-treated nanometal colloids | Helmut Bonnemann, Rainer Brinkmann | 2003-03-11 |
| 6491842 | Anticorrosive magnetic nanocolloids protected by precious metals | Helmut Bonnemann, Rainer Brinkmann, Michael Wagener | 2002-12-10 |
| 6090746 | Process for producing tenside-stabilized colloids of mono- and bimetals of the group VIII and Ib of the periodic system in the form of precursors for catalysts which are isolable and water soluble at high concentration | Helmut Bonnemann, Rainer Brinkmann, Joachim Richter | 2000-07-18 |
| 5641723 | Process for the preparation of highly active doped metal supported catalysts | Helmut Bonnemann, Rainer Brinkmann, Eckhard Dinjus, Rainer Fretzen, Barbara Korall | 1997-06-24 |
| 5580492 | Microcrystalline-to-amorphous metal and/or alloy powders dissolved without protective colloid in organic solvents | Helmut Bonnemann, Thomas Joussen | 1996-12-03 |
| 5308377 | Process for preparing microcrystalline-to-amorphous metal and/or alloy powders and metals and/or alloys dissolved without protective colloid in organic solvents | Helmut Bonnemann, Thomas Joussen | 1994-05-03 |
| 5240515 | Acicular iron-magnet pigments having an adjustable coercive field strength and process for producing same | Helmut Bonnemann, Rainer Brinkmann | 1993-08-31 |
| 5053075 | Acicular iron-magnet pigments having an adjustable coercive field strength and process for producing same | Helmut Bonnemann, Rainer Brinkmann | 1991-10-01 |