Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10151586 | Spirit level | Lukas Zwing, Gerd Stroehle, Helmut Weissenbach | 2018-12-11 |
| 9726484 | Level device | Lukas Zwing | 2017-08-08 |
| 8327552 | Vial for a spirit level | Lukas Zwing | 2012-12-11 |
| 8266809 | Spirit level | Lukas Zwing | 2012-09-18 |
| D632985 | Optical beam leveling instrument | — | 2011-02-22 |
| 7784193 | Airlessly sealed vial | — | 2010-08-31 |
| 7765706 | Level | — | 2010-08-03 |
| 7676939 | Cross laser device for installation of plate-shaped or board-shaped floor covering elements | — | 2010-03-16 |
| D596056 | Spirit level | — | 2009-07-14 |
| D509762 | Level | — | 2005-09-20 |
| D459251 | Level | — | 2002-06-25 |