QINETIQ LIMITED
🏢 View company profile →562Patents
233Active
562Granted
53Portfolio score
Filing activity: Mar 15, 1982 → Jul 30, 2021 · 145 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7303502B2 | Gear change mechanism | Mechanical Engineering; Lighting; Heating | 1,360 | Expired |
| US6389187B1 | Optical fiber bend sensor | Physics | 432 | Expired |
| US6614387B1 | Proximity measuring apparatus | Physics | 319 | Expired |
| US6670212B2 | Micro-machining | Physics | 127 | Expired |
| US7646905B2 | Scoring estrogen and progesterone receptors expression based on image analysis | Physics | 117 | Expired |
| US6322895A | Biomaterial | Human Necessities | 106 | Expired |
| US7281891B2 | Wind turbine control having a lidar wind speed measurement apparatus | Emerging Cross-Sectional Technologies | 105 | Expired |
| US6541966B1 | Precision metal locating apparatus | Physics | 91 | Expired |
| US7530527B2 | Method and device for launching aerial vehicles | Performing Operations; Transporting | 90 | Expired |
| US8855316B2 | Quantum cryptography apparatus | Electricity | 89 | Active |
| US7391887B2 | Eye tracking systems | Physics | 86 | Expired |
| US6398843B1 | Dispersion-strengthened aluminium alloy | Chemistry; Metallurgy | 86 | Expired |
| US6762873B1 | Methods of driving an array of optical elements | Physics | 85 | Expired |
| US7081091B2 | Data analysis system | Emerging Cross-Sectional Technologies | 70 | Expired |
| US7579592B2 | Illumination and imaging devices and methods | Electricity | 65 | Expired |
| US7299251B2 | Adaptive filter | Electricity | 64 | Expired |
| US6683645B1 | Imaging system with low sensitivity to variation in scene illumination | Electricity | 60 | Expired |
| US6399228B1 | Multi-layer interference coatings | Chemistry; Metallurgy | 59 | Expired |
| US7612715B2 | Direction finding | Physics | 58 | Expired |
| US6683294B1 | Avalanche photo-diodes | Electricity | 58 | Expired |
| US7471362B1 | Bistable nematic liquid crystal device | Physics | 58 | Expired |
| US7589825B2 | Ranging apparatus | Physics | 55 | Expired |
| US7074151B2 | Drive configuration for a skid steered vehicle | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US7414404B2 | Metal detection apparatus | Physics | 49 | Expired |
| US9692595B2 | Quantum key distribution | Electricity | 44 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.