Norbert Keil
9Patents
4h-index
16Co-inventors
50Inventor score
Filing activity: Jun 19, 1998 → Jan 24, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6282335A | Thermo-optical switch | Physics | 22 | Expired |
| US6215918A | Thermo-optical switch | Physics | 11 | Expired |
| US6757469B2 | Temperature insensitive optical waveguide device | Physics | 5 | Expired |
| US6233377A | Digital optical switch | Physics | 4 | Expired |
| US8295656B2 | Method and apparatus for compensating polarization-dependent frequency shifts in optical waveguides | Physics | 4 | Active |
| US8989538B2 | Sensor element and method for the production thereof and use thereof | Physics | 3 | Active |
| US8065946B2 | Composite armor element and effective body element | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US6853790B1 | Optical waveguides derived from a combination of poly(perfluorocyclobutanes) and polymeric cyanates | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6716958B1 | Waveguide systems or structures or parts thereof, containing polycyanate copolymers prepared from polyfunctional cyanates and fluorinated monocyanates | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.