Kjetil Johannessen
15Patents
6h-index
10Co-inventors
59Inventor score
Filing activity: Dec 28, 2001 → Dec 4, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7020363B2 | Optical probe for wafer testing | Physics | 104 | Expired |
| US9850749B2 | Method of acoustic surveying | Physics | 17 | Active |
| US6954566B2 | Apparatus for thermal compensation of an arrayed waveguide grating | Physics | 12 | Expired |
| US6987895B2 | Thermal compensation of waveguides by dual material core having positive thermo-optic coefficient inner core | Physics | 11 | Expired |
| US9709768B2 | Optical connector | Physics | 6 | Active |
| US6842572B2 | Techniques to guide optical signals | Physics | 6 | Expired |
| US9353608B2 | Flow control device and flow control method | Fixed Constructions | 6 | Active |
| US6970625B2 | Optimized Y-branch design | Physics | 4 | Expired |
| US6684015B2 | Method of self-aligning optical waveguides | Physics | 4 | Expired |
| US6864512B2 | Optical waveguide with layered core and methods of manufacture thereof | Physics | 3 | Expired |
| US6670210B2 | Optical waveguide with layered core and methods of manufacture thereof | Physics | 1 | Expired |
| US10196890B2 | Method of acoustic surveying | Physics | 1 | Active |
| US10175377B2 | Signal and power transmission in hydrocarbon wells | Emerging Cross-Sectional Technologies | 1 | Active |
| US10185049B2 | Electro-magnetic antenna for wireless communication and inter-well electro-magnetic characterization in hydrocarbon production wells | Electricity | 0 | Active |
| US11814951B2 | Inflow channel for determining properties of fluid flowing therethrough | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.