The Marconi Company Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F41G WEAPON SIGHTS; AIMING 128
 
 
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5250953 Tracking radar systemsNov 10, 77Oct 05, 93[F41G, G01S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5173699 Antenna arrangementExpiredNov 05, 87Dec 22, 92[H01Q]
5158820 Signal carrier supports with apertured dielectric layerExpiredMay 31, 90Oct 27, 92[H01P, B32B]
5136693 Architecture for a signal processing apparatusExpiredMay 17, 90Aug 04, 92[G06F]
5134485 Television transmitter having amplification modules in which one component of r.f. signal is obtained by modulating another component and the r.f. signal components are combined after amplificationExpiredSep 27, 90Jul 28, 92[H04N]
5124665 Circuit for reducing distortion produced by an r.f. power amplifierExpiredJan 18, 91Jun 23, 92[H03F]
5121077 Circuit for reducing distortion produced by an r.f. power amplifierExpiredJan 30, 91Jun 09, 92[H03F]
5119107 Planar microwave antenna slot array with common resonant back cavityExpiredFeb 21, 90Jun 02, 92[H01Q]
5107272 Radar system employing injection locked transmitter stageExpiredNov 27, 89Apr 21, 92[H03L, H03B, G01S]
5074376 Noise reduction methodExpiredDec 15, 89Dec 24, 91[F01N]
5075696 Direction finding apparatusExpiredSep 18, 89Dec 24, 91[G01S]
5043683 Waveguide to microstripline polarization converter having a coupling patchExpiredJun 21, 89Aug 27, 91[H01P]
5039994 Dipole arraysExpiredNov 13, 89Aug 13, 91[H01Q]
5036748 Weapon systemExpiredAug 15, 90Aug 06, 91[F41G]
5036335 Tapered slot antenna with balun slot line and stripline feedExpiredMay 17, 90Jul 30, 91[H01Q]
5025264 Circularly polarized antenna with resonant aperture in ground plane and probe feedExpiredFeb 21, 90Jun 18, 91[H01Q]
5017937 Wideband horn antennaExpiredFeb 05, 90May 21, 91[H01Q]
5016020 Transceiver testing apparatusExpiredApr 19, 89May 14, 91[G01R]
4991794 Radar seeker transient suppressorExpiredSep 11, 89Feb 12, 91[F41G]
4982053 Closure arrangement including a radio frequency sealExpiredJan 10, 89Jan 01, 91[H05K]
4977617 MixerExpiredDec 12, 89Dec 11, 90[H03D]

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