Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549969 | Process and an apparatus for enriching liquids with oxygen | Klaus Gerlach, Wolfgang Lange | 1985-10-29 |
| 4440648 | Process and an apparatus for enriching liquids with oxygen | Klaus Gerlach, Wolfgang Lange | 1984-04-03 |