Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430163 | Process for the continuous separation of slightly volatile components from a crude phthalic acid anhydride | Gerhard Keunecke, Herbert Krimphove | 1984-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430163 | Process for the continuous separation of slightly volatile components from a crude phthalic acid anhydride | Gerhard Keunecke, Herbert Krimphove | 1984-02-07 |