Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011484 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Thorsten Leidig, Friedhelm Steffens, Knud Werner, Thomas Runowski | 2018-07-03 |
| 9938147 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Thorsten Leidig, Friedhelm Steffens, Knud Werner, Thomas Runowski | 2018-04-10 |