Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5103065 | Transition metal complexes as catalysts for hydrogenation hydroformylation and cyclotrimerization | Werner Bertleff, Dieter Koeffer, Choong Eui Song | 1992-04-07 |
| 4999443 | Transition metal complexes | Werner Bertleff, Dieter Koeffer, Choong Eui Song | 1991-03-12 |