Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486327 | Method for producing hydroxymethylpyridines | Karlheinz Giselbrecht | 2002-11-26 |
| 6486358 | Process for the purification and formulation of o-phthalaldehyde | Karlheinz Giselbrecht, Walter Raml | 2002-11-26 |