Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698203 | European vaccine strains of the Porcine Reproductive Respiratory Syndrome virus (PRRSV) | Nicolaas Visser, Volker Ohlinger, Emilie Weiland | 1997-12-16 |
| 5626850 | Non-shedding live herpesvirus vaccine | Nicolaas Visser, Thomas C. Mettenleiter | 1997-05-06 |