Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5104497 | Electrochemical process for treating liquid electrolytes | Karl-Heinz Tetzlaff, Dieter Schmid | 1992-04-14 |
| 4824534 | Process for electrically separating the electrolyte-bearing mains from the electrolyte spaces of an electrochemical cell pile | Karl-Heinz Tetzlaff, Dieter Schmid | 1989-04-25 |
| 4703029 | Moldings made of silicate material and processes for their preparation | Hans-Peter Rieck, Martin Schott | 1987-10-27 |
| 4631158 | Shaped articles of silicate material, a process for their production and their use | Hans-Peter Rieck, Martin Schott | 1986-12-23 |
| 4627897 | Process for the electrolysis of liquid electrolytes using film flow techniques | Karl-Heinz Tetzlaff, Dieter Schmid | 1986-12-09 |
| 4620902 | Electrolysis process using liquid electrolytes and porous electrodes | Karl-Heinz Tetzlaff, Dieter Schmid | 1986-11-04 |
| 4613416 | Process for the concentration of sulfuric acid | Heinz Kau | 1986-09-23 |
| 4563261 | Gas diffusion electrode with a hydrophilic covering layer, and process for its production | Rudolf Staab | 1986-01-07 |
| 4378341 | Process for the manufacture of ammonium nitrilotrisulfonate | Hans-Peter Rieck, Hans-Joachim Semmler | 1983-03-29 |
| 4335085 | Process for the preparation of phosphorus pentachloride | Hans-Peter Rieck | 1982-06-15 |
| 4265865 | Process for the manufacture of phosphorus pentachloride | Gerhard Munster, Gerhard Riess | 1981-05-05 |
| 4236980 | Process for alkali metal chloride electrolysis | Nikolaj Medic, Theodor Auel, Dieter Bergner | 1980-12-02 |