Sparton Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2154
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 137
 
  
 
B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS 115
 
  
 
B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS127
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
F17C VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES 126
 
  
 
F41F APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS 110
 
  
 
G10K SOUND-PRODUCING DEVICES 134
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101
 
  
 
H03F AMPLIFIERS 182

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0245,548 CONTROL OF ELECTRIC FIELD EFFECTS IN A PRINTED CIRCUIT BOARD ASSEMBLY USING EMBEDDED NICKEL-METAL COMPOSITE MATERIALSFeb 26, 14Aug 27, 15[H05K]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9841145 Axial piercing mechanism for pressurized gas canisterOct 26, 16Dec 12, 17[F16K, F17C, B60C, B63C, B63B]
9612085 Payload launch system and methodJan 26, 15Apr 04, 17[F41F]
8674622 LED-based lighting module and control methodMar 30, 12Mar 18, 14[H05B]
8662441 Unmanned aerial vehicle launch systemFeb 07, 12Mar 04, 14[B64F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5414406 Self-tuning vehicle hornExpiredApr 21, 92May 09, 95[G08B]
5379267 Buoyancy control systemExpiredNov 04, 93Jan 03, 95[G01V]
5311581 Remote meter reading method and apparatusExpiredNov 02, 92May 10, 94[H04M]
5293149 Vehicle horn with electronic solid state energizing circuitExpiredApr 12, 91Mar 08, 94[G08B]
5266921 Method and apparatus for adjusting vehicle hornsExpiredJan 30, 92Nov 30, 93[G08B]
5229980 Broadband electroacoustic transducerExpiredMay 27, 92Jul 20, 93[H04R]
5204194 Multicell battery having a tab-fuse for overcurrent interruptionExpiredMay 21, 92Apr 20, 93[H01M]
5160913 Electric horn with solid state driverExpiredSep 16, 91Nov 03, 92[G08B]
5161182 Remote meter reading method and apparatusExpiredApr 17, 91Nov 03, 92[H04M]
5129494 Service brake and shift lever interlock systemExpiredOct 02, 90Jul 14, 92[B60K]
5084846 Deep submergence hydrophoneExpiredFeb 16, 88Jan 28, 92[G10K]
5070427 Thermal switch for battery protectionExpiredJan 31, 90Dec 03, 91[H02H]
5065604 Ignition interlock systemExpiredJun 11, 90Nov 19, 91[B60R]
5062344 Bowline knot in a braided lineExpiredApr 12, 90Nov 05, 91[D04C, D07B]
5049853 Electric horn with solid state driverExpiredNov 03, 89Sep 17, 91[G08B]
5018610 Service brake and shift lever interlock systemExpiredFeb 23, 89May 28, 91[B60K]
5010568 Remote meter reading method and apparatusExpiredApr 04, 89Apr 23, 91[H04M]
5006841 Addressable transducer with improved response signal processingExpiredFeb 16, 88Apr 09, 91[H04Q]
4995014 Low frequency hydrophone and depth sensor assemblyExpiredJan 29, 90Feb 19, 91[H04R]
4949069 Dynamic liquid level indicatorExpiredNov 09, 88Aug 14, 90[G08B]

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