Shamrock Micro Devices Corp.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 2100
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2109
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9209682 Switching-mode power supplies and control methods thereofSep 24, 11Dec 08, 15[H02M, H02P]
9197133 Voltage waveform detector, power controller and control method for switched-mode power supplies with primary-side controlOct 02, 12Nov 24, 15[H02J, H02M]
9018844 Controllers and light modules with light emitting diodesOct 02, 12Apr 28, 15[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8482208 Switching mode power supplies and control methods used therein to provide power factor correction and constant output currentExpiredMay 08, 11Jul 09, 13[H05B]
2013/0154,781 Windings and Formation Methods for TransformersAbandonedOct 02, 12Jun 20, 13[H01F]
2012/0320,632 POWER SWITCH CONTROLLERS AND METHODS USED THEREIN FOR IMPROVING CONVERSION EFFECIENCY OF POWER CONVERTERSAbandonedJun 20, 11Dec 20, 12[H02M]
2012/0169,315 POWER SUPPLIES AND CONTROL METHODS FOR OPERATING IN QUADRATURE-RESONANCE-SIMILAR MODEAbandonedJun 02, 11Jul 05, 12[G05F]

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