Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9559614 | Grid-connected inverter, inverter arrangement and method for operating an inverter arrangement | Josef Petschenka, Christopher Krause, Christian Landau | 2017-01-31 |
| 5089120 | Treatment vessel for bodies of water with laterally adjustable pontoons | — | 1992-02-18 |
| 4882072 | Method and apparatus for treating bodies of water | — | 1989-11-21 |
| 4877524 | Apparatus for treating bodies of water | — | 1989-10-31 |
| 4818416 | Method and apparatus for treating bodies of water | — | 1989-04-04 |
| 4747958 | Method and apparatus for treating bodies of water | — | 1988-05-31 |