Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720456 | Trehalose lipid tetraesters | Fritz Wagner, Egbert Ristau, Zu-yi Li, Siegmund Lang, Hans-Jurgen Hofmann +2 more | 1988-01-19 |
| 4663039 | Apparatus for removal of oil from water and adsorbents using glycolipids | Walter Lindorfer, Fritz Wagner, Wilhelm Jahn-Held | 1987-05-05 |
| 4437993 | Prevention of penetration of oily hydrocarbons into sand | Walter Lindorfer, Fritz Wagner | 1984-03-20 |
| 4427528 | Process for extracting crude oil from tar sands | Walter Lindorfer, Fritz Wagner, Wilhelm Jahn-Held | 1984-01-24 |
| 4392892 | Process for separating hydrocarbons from particulate solids | Fritz Wagner, Walter Lindorfer, Wilhelm Jahn-Held | 1983-07-12 |
| 4374735 | Method for removal of oil from sorbents using glycolipids | Walter Lindorfer, Fritz Wagner, Wilhelm Jahn-Held | 1983-02-22 |
| 4286660 | Process and installation for the flooding of petroleum deposits and oil shale | Fritz Wagner, Peter Rapp, Hans-Peter Bock, Walter Lindorfer, Wilhelm Gebetsberger | 1981-09-01 |
| 4284509 | Process for removing oils or petroleum from the surface of the sea | Walter Lindorfer, Fritz Wagner, Wilhelm Jahn-Held | 1981-08-18 |
| 4223730 | Method for the tertiary recovery of petroleum by flooding with hot water and an aqueous alkaline solution | Wilhelm Gebetsberger | 1980-09-23 |