Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7188492 | Plate heat exchanger | Dietrich Rottmann | 2007-03-13 |
| 7152432 | Multistory bath condenser | Alfred Wanner, Dietrich Rottmann, Karl Heinrich Schweigert | 2006-12-26 |
| 7134297 | Low-temperature air fractionation process | Dietrich Rottmann | 2006-11-14 |
| 6662595 | Process and device for obtaining a compressed product by low temperature separation of air | Dietrich Rottmann, Christian Kunz | 2003-12-16 |
| 6629433 | Process and apparatus for heat exchange | Dietrich Rottmann, Karl Leibl | 2003-10-07 |
| 6560992 | Adjustment process for a low-temperature rectification unit | Dietrich Rottmann | 2003-05-13 |
| 6336345 | Process and apparatus for low temperature fractionation of air | — | 2002-01-08 |
| 6196023 | Method and device for producing compressed nitrogen | Dietrich Rottmann, Juergen Voit, Christian Kunz, Wolfgang Haag | 2001-03-06 |
| 6038885 | Air separation process | Stefan Lochner | 2000-03-21 |
| 5953937 | Process and apparatus for the variable production of a gaseous pressurized product | Horst Altmeyer | 1999-09-21 |
| 5590544 | Process and apparatus for recovery of pure argon | Wilhelm Rohde | 1997-01-07 |
| 5426946 | Process and an apparatus for recovering argon | Hartwin Lindner | 1995-06-27 |
| 5019145 | Argon purification | Wilhelm Rohde | 1991-05-28 |
| 4883518 | Process for air fractionation by low-temperature rectification | Werner Skolaude, Gunnar Eggendorfer | 1989-11-28 |
| 4824453 | Process and apparatus for air separation by rectification | Dietrich Rottmann | 1989-04-25 |