Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217207 | Current creating device and method for liquefaction of thickened crude oil sediments | Alexandra S. Frei | 2001-04-17 |
| 6041477 | Spring-effect hinge arrangement, for example for one-piece injected plastic closures | Rudolf Rentsch, Louis Lagler | 2000-03-28 |