Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5312466 | Pumping installation for pumping out an enclosure containing gases which are mixed with solid particles or which generate solid condensates or particles | Albert Cacard | 1994-05-17 |
| 5013227 | Multistage roots pump and a method of assembling such a pump | Dominique Guittet, Jean-Francois Vuillermoz | 1991-05-07 |
| 4990069 | Multi-stage roots vacuum pump with sealing module | Dominique Guittet, Jean-Francois Vuillermoz | 1991-02-05 |