Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11267703 | Method and a system for separating and treating impurities from a hydrogen chloride liquid mixture | Andre RITTERMEIER, Rainer Hellmich, Luyan Wu, Micky Qian, Peter Lehner +4 more | 2022-03-08 |
| 10859317 | Apparatus and method for evaporating liquids containing potentially explosive impurities | Jiyuan Sun, Thorsten Leidig, Thomas Runowski, Dieter Heitkamp | 2020-12-08 |
| 10011484 | Process for purifying raw-material gases by fractionation | Juergen Bittner, Thorsten Leidig, Friedhelm Steffens, Knud Werner, Thomas Runowski | 2018-07-03 |
| 9938147 | Process for purifying raw-material gases by fractionation | Juergen Bittner, Thorsten Leidig, Friedhelm Steffens, Knud Werner, Thomas Runowski | 2018-04-10 |
| 8765991 | Process for the preparation of isocyanates | Jürgen Kintrup, Peter Lehner, Eric Jakobs, Knud Werner | 2014-07-01 |
| 8377284 | Method of recycling process gas in electrochemical processes | Fritz Gestermann, Thorsten Leidig | 2013-02-19 |
| 6547948 | Method of increasing the concentration of dilute brine in NaCl electrolysis plants using the membrane process | Klaus Geisler, Bernd Bressel | 2003-04-15 |
| 4781580 | Indirectly heated rotary tubular kiln | Helmut Janz, Fritz Rodi, Jakob Rademachers | 1988-11-01 |
| 4629500 | Use of novel rotary tubular kiln | Helmut Janz, Fritz Rodi, Jakob Rademachers | 1986-12-16 |