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ELECTROMAGNETIC SCIENCES INC

Overview
  • Total Patents
    39
About

ELECTROMAGNETIC SCIENCES INC has a total of 39 patent applications. Its first patent ever was published in 1974. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets telecommunications, measurement and basic communication technologies are RYMSA, CHANNEL MASTER LLC and SENWELLEN SHENZHEN COMMUNICATION TECH CO LTD.

Patent filings per year

Chart showing ELECTROMAGNETIC SCIENCES INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roberts Roger G 15
#2 Sharon Thomas E 7
#3 Montgomery James P 4
#4 Alexander Jeff M 4
#5 Hoover John C 3
#6 Runyon Donald L 3
#7 Thompson James Ernest Jr 2
#8 Wier Charles G 2
#9 Than Po 2
#10 Giese David E 2

Latest patents

Publication Filing date Title
US5844529A Antenna enclosure with a stress-free connection along the length of the radome
US5304999A Polarization agility in an RF radiator module for use in a phased array
US5278574A Mounting structure for multi-element phased array antenna
US5170138A Single toroid hybrid mode RF phase shifter
US5144319A Planar substrate ferrite/diode phase shifter for phased array applications
CA1322232C Hybrid mode rf phase shifter
US4980691A Distributed planar array beam steering control with aircraft roll compensation
US5089716A Simplified driver for controlled flux ferrite phase shifter
US5129099A Reciprocal hybrid mode rf circuit for coupling rf transceiver to an rf radiator
US5075648A Hybrid mode rf phase shifter and variable power divider using the same
US4884045A Fast switching reciprocal ferrite phase shifter
US4801902A Waveguide circulator with I/O port impedance matching produced by ferrite-port gap dimensioning
US4697158A Reduced height waveguide circulator
US4673946A Ridged waveguide to rectangular waveguide adaptor useful for feeding phased array antenna
EP0139800A1 Method and apparatus for fast-switching dual-toroid microwave phase shifter
US4445098A Method and apparatus for fast-switching dual-toroid microwave phase shifter
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
US4012644A Blocking oscillator driver for a microwave latching ferrite device
US3946340A Phase shifter