Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880898 | Water-soluble polycondensates based on fatty acids, dialkanolamine and maleic anhydride, a process for their production, hydraulic compositions containing them and their use | Bernd Wahle, Hermann Anzinger, Erhard Schinski | 1989-11-14 |
| 4364836 | Process for the removal of alkali metal halides from cellulose ethers soluble in cold water and use of the purified products in washing and cleansing agent compositions | — | 1982-12-21 |
| 4296235 | Process for the removal of alkali metal halides from cellulose ethers soluble in cold water and use of the purified products in washing and cleansing agent compositions | — | 1981-10-20 |