Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10519064 | Process and additive to improve adhesion of building compositions to substrates | Hongli Willimann, Robert Koelliker, Andrey Petrovich Pustovgar, Urs Heini, Thomas Aberle | 2019-12-31 |
| 8623462 | Redispersible polymer powder composition | Alexander Zapf, Hongli Willimann, Urs Heini | 2014-01-07 |
| 8491969 | Redispersible polymer powder | Hongli Willimann, Urs Heini, Alexander Zapf, Robert Koelliker | 2013-07-23 |
| 8461247 | Dispersion compositions for tile adhesives | Hongli Willimann, Ulf Kehrer | 2013-06-11 |