Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4511707 | Water-soluble precondensates useful for improving the fastness of dyes and optical brighteners on hydroxy group-containing substrates | Salvatore Valenti | 1985-04-16 |
| 4439203 | Process for improving the wetfastness of dyeings, printings and optical brightenings on cellulosic substrates and compositions useful therefor | Salvatore Valenti | 1984-03-27 |
| 4233193 | Salts of polymeric basic amides | Richard Hochreuter | 1980-11-11 |