Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820757 | Polymers photostabilized by novel imidazole-2-carboxanilides | Peter Neumann, Gerhard Wagenblast, Hubert Trauth | 1989-04-11 |
PS
Peter Spang
Overall (1989): #69,242 of 140,708Top 50%
1
Patents 1989