Heinz Wandel
4Patents
3h-index
4Co-inventors
43Inventor score
Filing activity: Oct 6, 1988 → Jul 28, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4974586A | Breathing mask | Human Necessities | 137 | Expired |
| US6403197B1 | Filter material | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6364978B1 | Method and apparatus for producing a filter material | Emerging Cross-Sectional Technologies | 8 | Expired |
| US9314056B2 | Breathing mask | Human Necessities | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.