Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222532 | Device for dispensing hydrocarbons with vapor recovery | Sylvain Janssen, Jacques Fournier | 1993-06-29 |
| 4958996 | Rotary device having inter-engaging internal and external teeth | Sylvain Janssen, Gerard Lagarde | 1990-09-25 |