Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780864 | Piperazine and piperidine compounds | Roelof Feenstra, Johannes van der Heijden, Cornelis G. Kruse, Stephen K. Long, Gerben M. Visser +2 more | 2004-08-24 |
| 5462942 | 2,3-dihydro-1,4-benzodioxin-5-yl-piperazine derivatives having 5-HT 1A-antagonistic activity | Jan Hartog, Bartholomeus J. Van Steen, Jacques Schipper | 1995-10-31 |
| 4889852 | Anxiolytically active piperazine derivatives | Jan Hartog | 1989-12-26 |