Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4425245 | Benzene sulfonic acid modified aromatic Mannich products from alkyl phenols | Paul J. Cahill, Edmund J. Piasek, deceased | 1984-01-10 |
| 4425249 | Benzene sulfonic acid catalyzed aromatic Mannich products from alkyl phenols | Paul J. Cahill, Edmund J. Piasek, deceased | 1984-01-10 |