Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812506 | Amino methyl propanol blocked aromatic sulfonic acid | David Chang | 1989-03-14 |
| 4429066 | Additive for coating compositions containing n-propyl amine salt of sulfonic acid | — | 1984-01-31 |