HITTITE MICROWAVE LLC
66Patents
49Active
66Granted
52Portfolio score
Filing activity: Mar 13, 1987 → May 7, 2018 · 14 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5012123A | High-power rf switching system | Electricity | 166 | Expired |
| US5872536A | Multi-sensor anticipatory object detection system | Physics | 53 | Expired |
| US5451915A | Active filter resonator and system and negative resistance generator usable therein | Electricity | 34 | Expired |
| US6225891A | Wide-angle, static and positional anticipatory object detection system | Physics | 31 | Expired |
| US5826216A | Anticipatory collision sensor system | Physics | 28 | Expired |
| US5796362A | Post launch on-board identification friend or foe system | Physics | 28 | Expired |
| US5839096A | Self-implementing diagnostic system | Physics | 27 | Expired |
| US4893035A | Cascaded low pass/high pass filter phase shifter system | Electricity | 20 | Expired |
| US4992764A | High-power FET circuit | Electricity | 19 | Expired |
| US8085097B2 | Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip | Electricity | 15 | Active |
| US8810290B1 | Fractional phase locked loop having an exact output frequency and phase and method of using the same | Electricity | 11 | Active |
| US7880557B2 | Hybrid marchand/back-wave balun and double balanced mixer using same | Electricity | 11 | Active |
| US5867536A | Digital synchronization of broadcast frequency | Electricity | 10 | Expired |
| US4963773A | Low pass/high pass filter phase shifter | Electricity | 10 | Expired |
| US8610477B2 | Wideband analog phase shifter | Electricity | 8 | Active |
| US7659707B2 | RF detector with crest factor measurement | Physics | 8 | Active |
| US9173292B1 | Edge launch transition for a printed circuit board | Electricity | 8 | Active |
| US4760350A | Internally matched power amplifier | Electricity | 8 | Expired |
| US4801901A | Non-ferrite non-reciprocal phase shifter and circulator | Electricity | 8 | Expired |
| US7843268B2 | Modified distributed amplifier to improve low frequency efficiency and noise figure | Electricity | 7 | Active |
| US8957738B1 | Voltage controlled oscillator | Electricity | 7 | Active |
| US7187256B2 | RF package | Electricity | 7 | Expired |
| US9000851B1 | Cavity resonators integrated on MMIC and oscillators incorporating the same | Electricity | 7 | Active |
| US8786368B2 | Distributed amplifier with improved stabilization | Electricity | 7 | Active |
| US7714679B2 | Spiral coupler | Electricity | 6 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.