Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490884 | Process and device for production of oxygen and nitrogen | Herbert Schoenecker | 2002-12-10 |
| 6418753 | Method and device for cryogenic air separation | Gerhard Pompl | 2002-07-16 |
| 6351970 | Method for extracting xenon | Erich Hahn, Wilhelm Rohde | 2002-03-05 |
| 6314755 | Double column system for the low-temperature fractionation of air | Herbert Schoenecker | 2001-11-13 |
| 6230518 | Process and liquefier for the production of liquid air | Eric Hahn | 2001-05-15 |
| 6185960 | Process and device for the production of a pressurized gaseous product by low-temperature separation of air | — | 2001-02-13 |
| 5813251 | Process and apparatus for low-temperature separation of air | — | 1998-09-29 |
| 5802874 | Process and apparatus for liquefying low boiling gas such as nitrogen | — | 1998-09-08 |
| 5730004 | Triple-column for the low-temperature separation of air | — | 1998-03-24 |
| 5669237 | Method and apparatus for the low-temperature fractionation of air | — | 1997-09-23 |