JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.

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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 696
 
  
 
H03K PULSE TECHNIQUE 5126
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2109
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 176
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0062,641 DRIVE METHOD AND DRIVE CIRCUIT FOR POWER SWITCH, AND POWER SUPPLY SYSTEMAug 28, 17Mar 01, 18[H03K]
2017/0117,802 CIRCUIT FOR INCREASING BUCK OUTPUT VOLTAGEOct 07, 16Apr 27, 17[H02M]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9918365 Ripple removing circuit and LED control circuit applying the sameDec 09, 16Mar 13, 18[H05B]
9787182 Self-adaption current control circuitJul 25, 16Oct 10, 17[H02M, H05B, G05F]
9472980 Integrated buck/boost battery management for power storage and deliveryMay 31, 13Oct 18, 16[H02J]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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