Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5830283 | Method for avoiding sedimentation | Alexandra S. Frei | 1998-11-03 |
| 5615950 | Apparatus for preventing sedimentation | Alexandra S. Frei | 1997-04-01 |
| 5078799 | Process for recovering crude oil or refinery products from sludgy, thickened or sedimented products | Rolf Matter | 1992-01-07 |