Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527985 | Process for recycling waste sulfuric acid | Karl-Heinz Funken, Karl-Friedrich Knoche, Rudolf Sizmann | 1996-06-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527985 | Process for recycling waste sulfuric acid | Karl-Heinz Funken, Karl-Friedrich Knoche, Rudolf Sizmann | 1996-06-18 |