Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1060897 | High pressure cleaner | Denis Dammkoehler | 2025-02-04 |
| D1029427 | Vacuum cleaner | Denis Dammkoehler | 2024-05-28 |
| 11897010 | Heatable high pressure cleaning appliance | Stefan Kelle, Ralph Seitter, Denis Dammkoehler, Stefan Ehrhardt | 2024-02-13 |
| D941538 | High-pressure cleaner | Denis Dammkoehler | 2022-01-18 |
| D918505 | Handle for a cleaning machine | — | 2021-05-04 |
| D830014 | Electric vacuum cleaner | Denis Dammkoehler | 2018-10-02 |
| D830015 | Electric vacuum cleaner | Denis Dammkoehler | 2018-10-02 |
| D818788 | Device for collecting drilling dust | Denis Dammkoehler | 2018-05-29 |
| D815381 | Attachment for a floor cleaning machine | Denis Dammkoehler, Yunjin Zhao | 2018-04-10 |
| D810370 | Vacuum cleaner | Denis Dammkoehler | 2018-02-13 |
| D809725 | Lower portion of a vacuum cleaner | Denis Dammkoehler | 2018-02-06 |
| D803916 | Drilling dust collector | Denis Dammkoehler | 2017-11-28 |
| D802861 | Vacuum cleaners | Denis Dammkoehler | 2017-11-14 |
| D800977 | Vacuum cleaner | Denis Dammkoehler | 2017-10-24 |
| D800978 | Vacuum cleaner | Denis Dammkoehler | 2017-10-24 |
| D797681 | Controller of a vacuum cleaner | Denis Dammkoehler | 2017-09-19 |
| D793635 | Floor cleaning machine | Denis Dammkoehler | 2017-08-01 |
| D785254 | Floor cleaning machine | Denis Dammkoehler | 2017-04-25 |
| D779138 | Machine for cleaning floors | Denis Dammkoehler | 2017-02-14 |
| D746523 | Vacuum cleaner | — | 2015-12-29 |
| D731723 | Steam gun for a steam cleaner | Denis Dammkoehler | 2015-06-09 |
| D675795 | Vacuum cleaner | — | 2013-02-05 |
| D660529 | Vacuum cleaner | Denis Dammkoehler | 2012-05-22 |
| D655873 | Vacuum cleaner | — | 2012-03-13 |
| D655872 | Vacuum cleaner | — | 2012-03-13 |