Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806643 | Preparation of riboflavin | — | 1989-02-21 |
JG
Johannes Grimmer
Overall (1989): #95,217 of 140,708Top 70%
1
Patents 1989