Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646288 | Process for the preparation of aqueous nicotinaldehyde | Henry Szczepanski | 1997-07-08 |
| 5606057 | Process for the preparation of 6-alkyl-4-(pyridin-3-yl-methyleneamino)-4,5-dihydro-1,2,4-triazin-3(2H)- one | Thomas Pitterna, Henry Szczepanski | 1997-02-25 |