Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5800602 | Use of inclusion compounds of cyclic polysaccharides as charge control agents | Rudiger Baur | 1998-09-01 |
| 5693867 | Process for isolating tetraphenylborates | Rudiger Baur, Hermann Fuchs, Jorg Gitzel, Wilfried Theiss | 1997-12-02 |
| 5600003 | Process for isolating tetraphenylborates | R udiger Baur, Hermann Fuchs, J org Gitzel, Wilfried Theisse | 1997-02-04 |
| 5585216 | Use of cyclic oligosaccharides as charge control agents | R udiger Baur | 1996-12-17 |
| 5563016 | Diallylammonium compounds, processes for their preparation and their use | R udiger Baur | 1996-10-08 |
| 5558809 | Polymer electrets with improved charge stability | Werner Groh, Baylor D. Gibson, James Robert Walden, Clinton D. Felton | 1996-09-24 |
| 5554722 | Aromatic polyamide compositions with improved electrostatic properties, formed structures produced therefrom, and use and production thereof | Dieter Eichenauer, Werner Groh, Jorg Dahringer, Holger Jung, Richard Neuert | 1996-09-10 |
| 5502118 | Polyester salts and their use as charge control agents | Ru/ diger Bauer, Joachim Zo/ ller | 1996-03-26 |
| 5500323 | Charge control with cyclic polysulfonyldially ammonium salts | Rudiger Baur, Wilfried Theiss | 1996-03-19 |
| 5475119 | Diallylammonium compounds, processes for their preparation and their use | Rudiger Baur | 1995-12-12 |
| 5401809 | Polymer ammonium borates and processes for their preparation | Jorg Gitzel, Detlef Wehle | 1995-03-28 |
| 5378571 | Aryl and aralkyl sulfide, sulfoxide or sulfone compounds as charge regulators | Gert Nagl | 1995-01-03 |
| 5342723 | Biscationic acid amide and acid imide derivatives as charge controllers | Siegfried Schiebler, Jorg Gitzel, Erwin Dietz | 1994-08-30 |
| 5329046 | Biscationic acid amide and imide derivatives and processes for their preparation | Siegfried Schiessler, Jorg Gitzel, Erwin Dietz | 1994-07-12 |
| 5274184 | Aryl sulphide, aryl sulphoxide and aryl sulphone compounds | Gert Nagl | 1993-12-28 |
| 5187038 | Polymeric ammonium compounds as charge control agents | Jorg Gitzel, Detlef Wehle | 1993-02-16 |
| 5147748 | Use of colorless highly fluorine-substituted phosphonium compounds as charge control agents for electrophotographic recording processes | Jorg Gitzel, Wolfgang Knaup | 1992-09-15 |
| 5137576 | Quinacridones having selectively adjusted triboelectric effects | Adolf Kroh, Alexander Sieber, Erwin Dietz | 1992-08-11 |
| 5073579 | Process for enhancing the electrostatic chargeability of powder coatings of powders, and the use thereof for surface-coating solid objects | Alexander Sieber, Claus Godau, Albrecht Manz | 1991-12-17 |
| 5069994 | Use of colorless, intensely fluorinated ammonium and iminium compounds as charge control agents for electrophotographic recording processes | Jorg Gitzel, Alexander Sieber, Frank Wehowsky, Gunther Prossel | 1991-12-03 |
| 5061585 | Blue coloring agent for electro-photographic copying processes with positive control action | Alexander Sieber | 1991-10-29 |
| 5055619 | Phosphonium compounds and processes for their preparation | Jorg Gitzel, Wolfgang Knaup | 1991-10-08 |
| 5053537 | Ammonium and iminium compounds | Jorg Gitzel, Frank Wehowsky, Gunther Prossel | 1991-10-01 |
| 5021473 | Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects | Alexander Sieber, Claus Godau, Albrecht Manz | 1991-06-04 |
| 5015676 | Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects | Alexander Sieber, Claus Godau, Albrecht Manz | 1991-05-14 |