Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015761 | Tricyclo{6.2.1.0.sup.1,6 }undecanes useful as fragrance chemicals | Willem Lenselink | 1991-05-14 |
| 4477678 | Sulfur-containing flavoring agents | Steven van den Bosch, Dirk K. Kettenes, Kris B. de Ross, Jan Stoffelsma | 1984-10-16 |
| 4380655 | Novel sulfur-containing flavoring agents | Steven van den Bosch, Dirk K. Kettenes, Kris Bart de Roos, Jan Stoffelsma | 1983-04-19 |