Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990685 | Process for the preparation of aqueous formaldehyde solutions | Heinz-Jurgen Alpers, Bernd-Ulrich Schenke, Reinhard Thiel | 1991-02-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990685 | Process for the preparation of aqueous formaldehyde solutions | Heinz-Jurgen Alpers, Bernd-Ulrich Schenke, Reinhard Thiel | 1991-02-05 |