Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818354 | Process for the preparation electrolytic manganese dioxide | Eberhard Preisler, Johannes Holzem, Gerhard Nolte | 1989-04-04 |
| 4337092 | Corrosion-inhibiting pigment and paint composition | Klaus Hestermann, Alexander Maurer, Joachim Kandler, Herbert Beumling | 1982-06-29 |
| 4268404 | Additive for use in metal working | Michael Ahlgrim, Franz-Josef Dany, Joachim Kandler | 1981-05-19 |
| 4203637 | Electrical power transmitting apparatus | Michael Ahlgrim, Wilfried Krieger, Gunter Sorbe | 1980-05-20 |
| 4184932 | Electropolishing process | Michael Ahlgrim, Helga Zygmann | 1980-01-22 |