Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806686 | Preparation of ribitylxylidine | Hansgeorg Ernst, Joachim Paust | 1989-02-21 |
HL
Hartmut Leininger
Overall (1989): #108,247 of 140,708Top 80%
1
Patents 1989