Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806518 | Process for the preparation of a silver-containing ethylene oxide catalyst and the catalyst prepared by the process | Gosse Boxhoorn, Peter Schoenmakers | 1989-02-21 |
OV
Otto M. Velthuis
Overall (1989): #71,709 of 140,708Top 55%
1
Patents 1989