Markku Orpana
5Patents
4h-index
9Co-inventors
39Inventor score
Filing activity: Mar 31, 1994 → Dec 17, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5561523A | Electrically tunable fabry-perot interferometer produced by surface micromechanical techniques for use in optical material analysis | Physics | 166 | Expired |
| US5646729A | Single-channel gas concentration measurement method and apparatus using a short-resonator Fabry-Perot interferometer | Physics | 151 | Expired |
| US5644676A | Thermal radiant source with filament encapsulated in protective film | Electricity | 123 | Expired |
| US5500569A | Electrically modulatable thermal radiant source and method for manufacturing the same | Electricity | 47 | Expired |
| US5934307A | Overpressure protector | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.