Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464482 | Mechanically driven roller vane pump | Johannes Gerardus Ludovicus Maria Van Spijk | 2002-10-15 |
| 6447277 | Mechanically driven roller vane pump with channels between corresponding cam and carrier chambers | Johannes Gerardus Ludovicus Maria Van Spijk | 2002-09-10 |
| 6416303 | Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers | Johannes Gerardus Ludovicus Maria Van Spijk | 2002-07-09 |
| 6413066 | Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers | Johannes Gerardus Ludovicus Maria Van Spijk | 2002-07-02 |
| 6382924 | Mechanically driven roller vane pump with enlarged surface area of the apertures | Johannes Gerardus Ludovicus Maria Van Spijk | 2002-05-07 |