Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286660 | Process and installation for the flooding of petroleum deposits and oil shale | Fritz Wagner, Peter Rapp, Hans-Peter Bock, Walter Lindorfer, Walther Schulz | 1981-09-01 |
| 4223730 | Method for the tertiary recovery of petroleum by flooding with hot water and an aqueous alkaline solution | Walther Schulz | 1980-09-23 |