Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8361921 | Noble metal nanoparticles, a process for preparing these and their use | Dan V. Goia, Joachim Koehler, Volker Bänisch | 2013-01-29 |
| 8071259 | Noble metal nanoparticles, a process for preparing these and their use | Dan V. Goia, Joachim Koehler, Volker Bänisch | 2011-12-06 |
| 7754369 | Ink for producing membrane electrode assemblies for fuel cells | Ralf Zuber, Anita Krämer, Knut Fehl, Joachim Köhler, Sandra Wittpahl | 2010-07-13 |
| 7141270 | Method for the production of membrane electrode assemblies for fuel cells | Sandra Wittpahl, Markus Vogt, Joachim Köhler | 2006-11-28 |
| 7109145 | Noble metal-containing supported catalyst and a process for its preparation | Karsten Ruth, Peter Biberbach | 2006-09-19 |
| 6998149 | Process for producing a membrane electrode assembly for fuel cells | Joachim Köhler, Sandra Wittpahl, Manfred Diehl | 2006-02-14 |
| 6893761 | Process for producing a membrane electrode assembly and the membrane electrode assembly produced thereby | Joachim Köhler, Anita Krämer, Knut Fehl, Armin Bayer | 2005-05-17 |
| 6861387 | Noble metal-containing supported catalyst and a process for its preparation | Karsten Ruth, Peter Biberbach | 2005-03-01 |
| 6797667 | Process for preparing an anode catalyst for fuel cells and the anode catalyst prepared therewith | Karsten Ruth, Peter Biberbach, Ralph McIntosh | 2004-09-28 |
| 6656290 | Soldering paste for hard-soldering and coating aluminum and aluminum alloys | Jurgen Koch, Leander Staab, Wolfgang Kohlweiler | 2003-12-02 |
| 6558746 | Coating composition for producing electrically conductive coatings | Willi Peter | 2003-05-06 |
| 6500217 | Process for applying electrode layers to a polymer electrolyte membrane strip for fuel cells | Ralf Zuber, Wolfgang Gottenauer, Knut Fehl, Manfred Diehl | 2002-12-31 |
| 6309772 | Membrane-electrode unit for polymer electrolyte fuel cells and processes for their preparation | Ralf Zuber, Knut Fehl, Udo Stenke | 2001-10-30 |
| 6165635 | Pt/Rh/Fe alloy catalyst for fuel cells and a process for producing the same | Emmanuel Auer, Gerhard Heinz, Thomas Lehmann, Robert Schwarz | 2000-12-26 |
| 6156449 | Catalyst layer for polymer electrolyte fuel cells | Ralf Zuber, Ralf Karch, Knut Fehl | 2000-12-05 |
| 6007934 | Co-tolerant anode catalyst for PEM fuel cells and a process for its preparation | Emmanuel Auer, Andreas Freund, Thomas Lehmann, Robert Schwarz, Udo Stenke | 1999-12-28 |
| 5852768 | Process for producing precious metal powders | Hauke Jacobsen, Werner Hartmann, Stipan Katusic | 1998-12-22 |
| 5767036 | Platinum-aluminum alloy catalyst for fuel cells and method of its production and use | Andreas Freund, Thomas Lehmann, Gerhard Heinz, Robert Schwarz | 1998-06-16 |
| 5578383 | Precious-metal material for articles of jewelry and a method of manufacturing them | Hans-Hermann Beyer | 1996-11-26 |
| 5266109 | EMI shielding pigments, a process for their preparation and their use | Werner Voelker, Wilan Jerke, Kai Dorer, Bernd Dorbath, Norbert Giesecke | 1993-11-30 |
| 5252522 | Purple pigments, a process for their production and use thereof | Bernd Dorbath, Werner Voelker, Wilan Jerke, Kai Dorer | 1993-10-12 |
| 5011627 | Screen-printable paste for manufacturing electrically conductive coatings | Klaus Lutz, Hans-Joachim Baer, Werner Leske, Harry Mueller | 1991-04-30 |
| 4962066 | Solder paste for fastening semiconductors onto ceramic bases | Mathias Metzner, Wolfgang Weber | 1990-10-09 |
| 4699888 | Die/attach composition | Maurice E. Dumesnil, Leonid Finkelshteyn | 1987-10-13 |