Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720478 | Catalyst for the orthomethylation of phenols | Heinz-Werner Voges | 1988-01-19 |
| 4644086 | Process and catalyst for the orthomethylation of phenols | Heinz-Werner Voges | 1987-02-17 |