Christian Stewen
7Patents
5h-index
13Co-inventors
60Inventor score
Filing activity: Feb 2, 2001 → Aug 25, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6577666B2 | Laser amplification system | Electricity | 25 | Expired |
| US6438152B2 | Laser amplification system | Electricity | 13 | Expired |
| US6891874B2 | Laser amplifier system | Electricity | 11 | Expired |
| US10258207B2 | Portable hard surface cleaning appliance | Human Necessities | 9 | Active |
| US7867304B2 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out said method | Emerging Cross-Sectional Technologies | 8 | Active |
| US8186005B2 | Vacuum cleaning device | Human Necessities | 4 | Active |
| US12256875B2 | Portable hard surface cleaning appliance | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.