Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8339607 | Ozone concentration sensor | Stephan Levine, Johannes Seiwert, Joachim Löhr, Ulrich Brammer | 2012-12-25 |
| 8085401 | Ozone concentration sensor | Stephan Levine, Johannes Seiwert, Joachim Löhr, Ulrich Brammer | 2011-12-27 |
| 7622037 | Ozonated water flow and concentration control apparatus and method | Johannes Seiwert, Christiane Gottschalk | 2009-11-24 |
| 7502114 | Ozone concentration sensor | Stephan Levine, Johannes Seiwert, Joachim Löhr, Ulrich Brammer | 2009-03-10 |
| 7264006 | Ozonated water flow and concentration control apparatus and method | Johannes Seiwert, Christiane Gottschalk | 2007-09-04 |
| 6948504 | Ozonated water flow and concentration control method | Johannes Seiwert, Christiane Gottschalk | 2005-09-27 |
| 6805791 | Ozonated water flow and concentration control apparatus | Johannes Seiwert, Christiane Gottschalk | 2004-10-19 |