Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8247098 | Electrochemical cell | Fritz Gestermann, Andreas Bulan | 2012-08-21 |
| 7803259 | Electrochemical cell | Fritz Gestermann, Rainer Weber, Gerd Speer, Andreas Bulan | 2010-09-28 |
| 7211177 | Electrode for electrolysis in acidic media | Fritz Gestermann, Gerd Speer, Peter Fabian, Robert Scannel | 2007-05-01 |
| 7128824 | Method for electrolysis of aqueous solutions of hydrogen chloride | Andreas Bulan, Walter Hansen, Fritz Gestermann, Michael Grossholz | 2006-10-31 |
| 6890418 | Process for the electrolysis of an aqueous solution of alkali metal chloride | Andreas Bulan, Fritz Gestermann | 2005-05-10 |
| 6841047 | Electrolysis cell, in particular for the electrochemical preparation of chlorine | Fritz Gestermann, Andreas Bulan, Walter Klesper | 2005-01-11 |
| 6838408 | Method for producing gas diffusion electrodes | Andreas Bulan, Fritz Gestermann, Peter Weuta, Walter Klesper | 2005-01-04 |
| 6790339 | Process for the electrochemical preparation of chlorine from aqueous solutions of hydrogen chloride | Andreas Bulan, Fritz Gestermann, Gerd Speer | 2004-09-14 |
| 6402930 | Process for the electrolysis of technical-grade hydrochloric acid contaminated with organic substances using oxygen-consuming cathodes | Robert J. Allen, James R. Giallombardo, Daniel Czerwiec, Emory S. De Castro, Khaleda Shaikh +2 more | 2002-06-11 |
| 6251239 | Electrochemical gaseous diffusion half cell | Fritz Gestermann, Jens Camphausen | 2001-06-26 |
| 6224740 | Electrolysis process | Fritz Gestermann, Helmut Ziegler | 2001-05-01 |
| 6165332 | Electrochemical half-cell with pressure compensation | Fritz Gestermann | 2000-12-26 |
| 6039853 | Electrochemical half-cell | Fritz Gestermann, Karl-Ludwig Metzger, Heiko Herold | 2000-03-21 |
| 5693202 | Pressure-compensated electrochemical cell | Fritz Gestermann | 1997-12-02 |
| 5575985 | Preparation of stable graphite | Helmut Klotz | 1996-11-19 |
| 5127999 | Process for the preparation of alkali metal dichromates and chromic acid by electrolysis | Helmut Klotz, Rainer Weber, Norbert Lonhoff, Hans-Dieter Block | 1992-07-07 |
| 5094729 | Processes for the preparation of alkali metal dichromates and chromic acid | Helmut Klotz, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1992-03-10 |
| 5071522 | Process for the preparation of chromic acid | Helmut Klotz, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1991-12-10 |
| 5051155 | Processes for the preparation of alkali metal dichromates and chromic acid | Helmut Klotz, Rainer Weber, Hans-Dieter Block, Norbert Lonhoff | 1991-09-24 |