Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466352 | Method and apparatus for processing waste sulfuric acid | Manfred Potzschke, Bernd Langner, Michael Stelter | 1995-11-14 |
| 5431877 | Process for decreasing the corrosiveness of a sour water | Gert Ungar, Hans-Martin Stonner, Ernst Stoldt, Johann Schlauer, Nikola Anastasijevic +1 more | 1995-07-11 |
| 5338417 | Cathodic corrosion protection for an aluminum-containing substrate | Werner Huppatz | 1994-08-16 |
| 5244551 | Process of regenerating waste pickle which contains metal salts and acids | Albert Kaune, Manfred Potzschke, Ernst Wallis | 1993-09-14 |