Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880842 | Multi-stage opacifying polymer particles containing non-polymeric acid absorbed therein | Alexander Kowalski | 1989-11-14 |
MV
Martin Vogel
Overall (1989): #78,201 of 140,708Top 60%
1
Patents 1989