Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818590 | Method for absorbing contaminants | Alexandra Jacobs | 2004-11-16 |
| 6383396 | Method for absorbing contaminants | Alexandra Jacobs | 2002-05-07 |
| 6239187 | Polymer foams | Wilfried Hatke, Alexandra Jacobs | 2001-05-29 |
| 6214488 | Polymer electrolyte membrane and process for the production thereof | Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte +1 more | 2001-04-10 |
| 6132622 | Absorbents | Alexandra Jacobs | 2000-10-17 |
| 6096856 | Polymer electrolytes and process for their production | Andreas Schleicher, Arnold Schneller, Helmut Witteler | 2000-08-01 |
| 6063949 | Stereorigid metallocene compound | Michael Aulbach, Frank Kuber, Michael Riedel | 2000-05-16 |
| 5853911 | Electrochemical cell | Karl-Heinz Tetzlaff, Rüdiger Walz | 1998-12-29 |
| 5834566 | Homogeneous polymer alloys based on sulfonated aromatic polyetherkeytones | Arnold Schneller | 1998-11-10 |
| 5741408 | Polymer electrolyte membrane for use in fuel cells and electrolysis cells | Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte +1 more | 1998-04-21 |
| 5656389 | Electrochemical cell | Karl-Heinz Tetzlaff, Rüdiger Walz | 1997-08-12 |
| 5561202 | Polymer electrolyte membrane, and process for the production thereof | Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte +1 more | 1996-10-01 |
| 5510424 | Homogeneous polymer alloys based on sulfonated aromatic polyether ketones | Otto Hermann-Schonherr, Uwe Kampschulte | 1996-04-23 |
| 5505851 | Semipermeable membranes of homogeneously miscible polymer alloys | Reinhard Wagener, Otto Herrmann-Schonherr | 1996-04-09 |
| 5438082 | Polymer electrolyte membrane, and process for the production thereof | Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte +1 more | 1995-08-01 |
| 5373081 | Polyether ketones and polyether sulfones based on phenylindane, and the use thereof for optical systems | Dazhong Yang, Gerhard Maier, Oskar Nuyken, Michael-Joachim Brekner | 1994-12-13 |
| 5362836 | Polymer electrolytes and their preparation | Frank Osan | 1994-11-08 |