Chellappan Narayanan
12Patents
6h-index
17Co-inventors
63Inventor score
Filing activity: Nov 30, 1995 → Apr 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6442311B1 | Optical device having modified transmission characteristics by localized thermal treatment | Physics | 35 | Expired |
| US5978539A | Optical device having a temperature independent spectral response using nonplanar geometric distortion of a substrate | Physics | 21 | Expired |
| US5768452A | Radiolytic method for trimming planar waveguide couplers | Physics | 9 | Expired |
| US5980120A | Fiber array test method and apparatus | Physics | 8 | Expired |
| US5796906A | Optical planar waveguide notch filters | Physics | 7 | Expired |
| US6055976A | Method of preparing end faces on integrated circuits | Performing Operations; Transporting | 6 | Expired |
| US10451421B2 | Resonant fiber optical gyroscope using antiresonant nodeless fiber | Physics | 4 | Active |
| US9252559B2 | Narrow bandwidth reflectors for reducing stimulated Brillouin scattering in optical cavities | Physics | 3 | Active |
| US5768457A | Multilayered connector pads for supporting butt-joined optical arrays | Physics | 1 | Expired |
| US5588085A | Radiolytic method for making a mode-field transforming optical waveguide | Physics | 0 | Expired |
| US11294120B2 | Integrated environmentally insensitive modulator for interferometric gyroscopes | Physics | 0 | Active |
| US11880067B2 | Integrated environmentally insensitive modulator for interferometric gyroscopes | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.