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, Hansjorg Hey, Erwin Andereya | 1989-04-04 |
HL
Horst Langner
Overall (1989): #103,306 of 140,708Top 75%
1
Patents 1989