Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818347 | Process for the isolation of vinyl acetate | Gunter Roscher, Karl-Heinz Schmidt, Horst Langner, Erwin Andereya | 1989-04-04 |
HH
Hansjorg Hey
Overall (1989): #108,565 of 140,708Top 80%
1
Patents 1989