Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6110334 | Electrolyte cell | — | 2000-08-29 |
| 5720867 | Process for the electrochemical recovery of the metals copper, zinc, lead, nickel or cobalt | Nikola Anastasijevic, Gerhard Jedlicka | 1998-02-24 |
| 5679240 | Anode for the electrolytic winning of metals and process | Nikola Anastasijevic, Gerhard Jedlicka | 1997-10-21 |
| 5637206 | Process for the electrochemical production of ammonium polysulfide | Nikola Anastasijevic, Eilhard Hillrichs, Gert Ungar | 1997-06-10 |
| 5167939 | Process for removing calcium and magnesium ions from an aqueous alkali chloride solution for use in membrane electrolysis | Rainer Dworak | 1992-12-01 |
| 4938944 | Method of and reactor for producing chlorine dioxide | Rainer Dworak, Peter Kohl, Reinhard Muller | 1990-07-03 |
| 4851198 | Reactor for producing chlorine dioxide | — | 1989-07-25 |
| 4839003 | Process for producing alkali hydroxide, chlorine and hydrogen by the electrolysis of an aqueous alkali chloride solution in a membrane cell | Rainer Dworak | 1989-06-13 |
| 4839013 | Electrode assembly for gas-forming electrolyzers | Peter Kohl | 1989-06-13 |
| 4502935 | Electrolytic cell having a membrane and vertical electrodes | Peter Kohl, G/u/ nter Haas | 1985-03-05 |
| 4474612 | Vertically extending plate electrode for gas-forming electrolyzers | — | 1984-10-02 |
| 4416744 | Process of electrolytically producing oxyacids of chlorine | Rainer Pfohl, Martin Gritschke | 1983-11-22 |
| 4409086 | Electrolytic cell | Gunther Haas, Ludolf Plass | 1983-10-11 |
| 4372939 | Process of producing chlorine dioxide | Siegfried Bielz, Paul Janisch | 1983-02-08 |
| 4370207 | Process of electrolytically producing oxyacids of chlorine | Rainer Pfohl, Martin Gritschke | 1983-01-25 |
| 4294815 | Process of producing chlorine dioxide and, if desired, chlorine | Siegfried Bielz, Paul Janisch | 1981-10-13 |
| 4278568 | Process of manufacturing sheet metal elements or strip having a catalytic surface structure | Heinz Wullenweber, Jurgen Muller, Bernd Sermond | 1981-07-14 |
| 4247375 | Process of electrolyzing aqueous solution of alkali halides | — | 1981-01-27 |
| 4238302 | Electrolytic process of recovering oxyacids of chlorine or salts thereof | — | 1980-12-09 |
| 4230569 | Method and apparatus for supplying dissolved chemicals into water | Rainer Pfohl, Jurgen Schubert, Martin Gritschke | 1980-10-28 |