Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970241 | Multi-stage opacifying polymer particles containing non-polymeric acid absorbed therein | Alexander Kowalski | 1990-11-13 |
| 4880842 | Multi-stage opacifying polymer particles containing non-polymeric acid absorbed therein | Alexander Kowalski | 1989-11-14 |
| 4469825 | Sequential heteropolymer dispersion and a particulate material obtainable therefrom, useful in coating compositions as an opacifying agent | Alexander Kowalski | 1984-09-04 |
| 4468498 | Sequential heteropolymer dispersion and a particulate materal obtainable therefrom, useful in coating compositions as a thickening and/or opacifying agent | Alexander Kowalski, Robert Mitchell Blankenship | 1984-08-28 |
| 4427836 | Sequential heteropolymer dispersion and a particulate material obtainable therefrom, useful in coating compositions as a thickening and/or opacifying agent | Alexander Kowalski, Robert Mitchell Blankenship | 1984-01-24 |