Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889909 | Thermoplastic polyarylene ethers | Joachim Knebel, Guenter Schroeder, Werner Ude | 1989-12-26 |
SB
Sigmund Besecke
Overall (1989): #56,400 of 140,708Top 45%
1
Patents 1989