Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846336 | Acid-resistant solutions containing aromatic formaldehyde condensation products | Klaus Walz, Hans-Albert Ehlert, Ralf Heinen | 2005-01-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846336 | Acid-resistant solutions containing aromatic formaldehyde condensation products | Klaus Walz, Hans-Albert Ehlert, Ralf Heinen | 2005-01-25 |