Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7349764 | Watering warning device | — | 2008-03-25 |
| D544800 | Electronic clock | — | 2007-06-19 |
| D541673 | Electronic clock | — | 2007-05-01 |
| 6798720 | Projection alarm clock | Fritz Schaffel | 2004-09-28 |
| 6761065 | Weather station | Fritz Schaffel | 2004-07-13 |
| D442496 | Combined alarm clock and private weather station with indoor and outdoor temperature and humidity displays | — | 2001-05-22 |
| D403602 | Private weather station | — | 1999-01-05 |