Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380663 | Process for the preparation of practically formic acid-free acetic acid | Gunter Roscher, Heinz Schmitz | 1983-04-19 |
HS
Helmut Schaum
Overall (All Time): #4,050,854 of 4,157,543Top 100%
1
Patents All Time