CHANNEL MASTER LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01Q AERIALS 3107
 
  
 
H01P WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE 258
 
  
 
E05C BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS 135

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7215222 Dual polarization waveguide probe system with wedge shape polarization rotatorFeb 18, 05May 08, 07[H01P]
6839037 Dual circular polarization waveguide systemJul 09, 02Jan 04, 05[H01Q]
6720932 Multi-frequency antenna feedSep 19, 01Apr 13, 04[H01Q]
6640498 Door structure with deformable peripheral edgeOct 17, 01Nov 04, 03[E05C]
6549173 Antenna feed and a reflector antenna system and a low noise (lnb) receiver, both with such an antenna feedNov 30, 00Apr 15, 03[H01Q]
5521562 High isolation switchMay 02, 94May 28, 96[H01P]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6980065 Low noise block PCB mounting system using non-linear insertable probesExpiredJun 19, 01Dec 27, 05[H01P]
2005/0158,011 Waveguide for use in dual polarisation probe systemAbandonedFeb 18, 05Jul 21, 05[G02B]
6831612 Antenna feed and a reflector antenna system and a low noise block (LNB) receiver, both with such an antenna feedExpiredJan 23, 03Dec 14, 04[H01Q]
2004/0140,859 Waveguide for use in dual polarisation probe systemAbandonedOct 10, 03Jul 22, 04[H01P]
2004/0130,406 Waveguide polarization rotatorAbandonedOct 10, 03Jul 08, 04[H01P]
6232849 RF waveguide signal transition apparatusExpiredApr 30, 98May 15, 01[H01P]
6157269 Local oscillator noise rejection circuitExpiredMay 04, 98Dec 05, 00[H03B]
5977844 Dual polarization waveguide probe systemExpiredOct 24, 97Nov 02, 99[H01P]
5801599 RF waveguide to microstrip board transition including means for preventing electromagnetic leakage into the microstrip boardExpiredMar 28, 95Sep 01, 98[H01P]
5619173 Dual polarization waveguide including means for reflecting and rotating dual polarized signalsExpiredMay 02, 94Apr 08, 97[H01P]

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