COMMUNICATIONS & POWER INDUSTRIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2126
 
  
 
H01Q AERIALS 2108
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
H03F AMPLIFIERS 182

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8097092 Method of cleaning and after treatment of optical surfaces in an irradiation unitJun 20, 06Jan 17, 12[B08B, G03F]
7872614 System and method for providing a deployable phasing structureOct 31, 07Jan 18, 11[H01Q]
5572092 High frequency vacuum tube with closely spaced cathode and non-emissive gridJun 01, 93Nov 05, 96[H01J]
5355093 Compact microwave and millimeter wave amplifierDec 23, 92Oct 11, 94[H03F]
5317233 Vacuum tube including grid-cathode assembly with resonant slow-wave structureApr 13, 90May 31, 94[H01J]
5311200 Millimeter wave variable width waveguide scannerJul 07, 93May 10, 94[H01Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0080,762 L-band inductive output tubeAbandonedDec 04, 06Apr 12, 07[H01P]
7138953 Method and apparatus for reducing the effects of collector blockage in a reflector antennaExpiredJan 25, 05Nov 21, 06[H01Q]
2004/0222,744 Vacuum tube electrode structureAbandonedNov 19, 03Nov 11, 04[H01J]
6084353 Coaxial inductive output tube having an annular output cavityExpiredJun 03, 97Jul 04, 00[H01J]
5767625 High frequency vacuum tube with closely spaced cathode and non-emissive gridExpiredApr 15, 96Jun 16, 98[H01J]
5698949 Hollow beam electron tube having TM.sub.0x0 resonators, where X is greater than 1ExpiredMar 28, 95Dec 16, 97[H01J]
5589736 Frequency multiplier including grid having plural segmentsExpiredMay 04, 94Dec 31, 96[H01J]
5450047 High power waveguide window and waveguide assemblyExpiredSep 21, 93Sep 12, 95[H01B]
5444327 Anisotropic pyrolytic graphite heaterExpiredJun 30, 93Aug 22, 95[H01J]
5418070 Tri-layer impregnated cathodeExpiredApr 28, 88May 23, 95[H01J, B22F]
5363016 Cooled reentrant TWT ladder circuit having axially raised cooling barsExpiredSep 30, 91Nov 08, 94[H01J]
5266414 Solid solution matrix cathodeExpiredMar 18, 88Nov 30, 93[B22F]
5233269 Vacuum tube with an electron beam that is current and velocity-modulatedExpiredApr 13, 90Aug 03, 93[H01J]
5180944 Gyrotron with a mode convertor which reduces EM wave leakageExpiredJan 25, 91Jan 19, 93[H01J, H01P]
5166965 High voltage DC source including magnetic flux pole and multiple stacked AC to DC converter stages with planar coilsExpiredApr 11, 91Nov 24, 92[H05G]
5097231 Quasi-passive, non-radioactive receiver protector deviceExpiredMay 16, 90Mar 17, 92[H01P]
5065109 Electropneumatic band selectorExpiredOct 16, 90Nov 12, 91[H03F]
5025193 Beam collector with low electrical leakageExpiredJun 19, 90Jun 18, 91[H01J]
5023768 High voltage high power DC power supplyExpiredDec 13, 89Jun 11, 91[H02M]
4949011 Klystron with reduced lengthExpiredMar 30, 89Aug 14, 90[H01J]

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