Electromagnetic Sciences, Inc.
17Patents
0Active
17Granted
34Portfolio score
Filing activity: Mar 18, 1974 → Apr 7, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5304999A | Polarization agility in an RF radiator module for use in a phased array | Electricity | 205 | Expired |
| US5844529A | Antenna enclosure with a stress-free connection along the length of the radome | Electricity | 28 | Expired |
| US4697158A | Reduced height waveguide circulator | Electricity | 25 | Expired |
| US4980691A | Distributed planar array beam steering control with aircraft roll compensation | Electricity | 25 | Expired |
| US5129099A | Reciprocal hybrid mode RF circuit for coupling RF transceiver to an RF radiator | Physics | 23 | Expired |
| US5075648A | Hybrid mode RF phase shifter and variable power divider using the same | Electricity | 22 | Expired |
| US4673946A | Ridged waveguide to rectangular waveguide adaptor useful for feeding phased array antenna | Electricity | 18 | Expired |
| US4140971A | Proximity detection system utilizing a movable magnet for saturating an inductor core wherein the rise time of a plurality of such inductors are compared | Physics | 17 | Expired |
| US4884045A | Fast switching reciprocal ferrite phase shifter | Electricity | 15 | Expired |
| US4445098A | Method and apparatus for fast-switching dual-toroid microwave phase shifter | Electricity | 13 | Expired |
| US5278574A | Mounting structure for multi-element phased array antenna | Electricity | 12 | Expired |
| US5144319A | Planar substrate ferrite/diode phase shifter for phased array applications | Electricity | 8 | Expired |
| US5170138A | Single toroid hybrid mode RF phase shifter | Electricity | 8 | Expired |
| US5089716A | Simplified driver for controlled flux ferrite phase shifter | Electricity | 8 | Expired |
| US3946340A | Phase shifter | Electricity | 6 | Expired |
| US4801902A | Waveguide circulator with I/O port impedance matching produced by ferrite-port gap dimensioning | Electricity | 6 | Expired |
| US4012644A | Blocking oscillator driver for a microwave latching ferrite device | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.