Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10859317 | Apparatus and method for evaporating liquids containing potentially explosive impurities | Alfred Soppe, Jiyuan Sun, Thorsten Leidig, Dieter Heitkamp | 2020-12-08 |
| 10143987 | Method for dividing fluid streams | Berthold Keggenhoff, Jeffrey Bolton, Friedhelm Steffens, Marc Seekamp, Gerhard Ruffert +1 more | 2018-12-04 |
| 10011484 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Juergen Bittner, Thorsten Leidig, Friedhelm Steffens, Knud Werner | 2018-07-03 |
| 9938147 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Juergen Bittner, Thorsten Leidig, Friedhelm Steffens, Knud Werner | 2018-04-10 |
| 9480958 | Device and method for producing phosgene | Ulrich Hollmann, Friedhelm Steffens, Wolfgang Lorenz | 2016-11-01 |