E-SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 WAVES2107
 
  
 
H04Q SELECTING 2108
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 173
 
  
 
H04B TRANSMISSION 1209
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5689527 Communications system using open architecture bus linesOct 23, 95Nov 18, 97[H04B]
5559864 Cellular based traffic sensor systemJun 05, 95Sep 24, 96[H04Q]
5502450 Single antenna direction-finding systemJul 19, 94Mar 26, 96[G01S]
5465289 Cellular based traffic sensor systemMar 05, 93Nov 07, 95[H04Q]
5414211 Device and method for shielding an electrically conductive cable from electromagnetic interferenceDec 21, 92May 09, 95[H01B]
5359333 Robust multiple cochannel emitter detectorsJul 21, 93Oct 25, 94[G01S]
5111359 Heat transfer device and methodApr 17, 91May 05, 92[H05K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5482109 Modular heat exchangerExpiredMar 15, 94Jan 09, 96[F28F, H05K]
5459923 Method of marking hermetic packages for electrical deviceExpiredJul 28, 93Oct 24, 95[H01R]
5455738 High thermal conductivity, matched CTE. low density mounting plate for a semiconductor circuitExpiredJul 28, 93Oct 03, 95[H05K]
5434358 High density hermetic electrical feedthroughsExpiredDec 13, 93Jul 18, 95[H01L]
5410618 Method for lofargram image enhancementExpiredFeb 03, 93Apr 25, 95[G06K]
5381596 Apparatus and method of manufacturing a 3-dimensional waveguideExpiredFeb 23, 93Jan 17, 95[H01P]
5292013 Support ferrulesExpiredOct 23, 92Mar 08, 94[F16L]
5287248 Metal matrix composite heat transfer device and methodExpiredMay 01, 92Feb 15, 94[H05K]
5269132 Method and apparatus for controlling infrared emissionsExpiredOct 29, 92Dec 14, 93[F02C, F02G]
5247470 Method and apparatus for estimating signal components of a filter outputExpiredJul 29, 87Sep 21, 93[G06F]
5241566 Full duplex FSK systemExpiredDec 13, 88Aug 31, 93[H04L]
5230085 Method and apparatus for wireless electromagnetic communication within a contained electromagnetic fieldExpiredApr 05, 91Jul 20, 93[H04B]
5200580 Configurable multi-chip module interconnectExpiredAug 26, 91Apr 06, 93[H05K]
5159347 Micromagnetic circuitExpiredNov 14, 89Oct 27, 92[H01Q]
5140586 Token associated data network communications protocolExpiredNov 20, 90Aug 18, 92[H04J]
5136479 Device and method for creating an areal light sourceExpiredJun 19, 90Aug 04, 92[F21V, G02B]
5131438 Method and apparatus for unmanned aircraft in flight refuelingExpiredAug 20, 90Jul 21, 92[B64D]
5072422 Content-addressed memory system with word cells having select and match bitsExpiredMay 15, 89Dec 10, 91[G06F, G11C]
5034910 Systolic fast Fourier transform method and apparatusExpiredMay 25, 90Jul 23, 91[G06F]
5034911 Signal parameterizerExpiredJan 22, 90Jul 23, 91[G06F]

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