KELK LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 23339
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 678
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 596
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 464
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 3125
 
  
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 244
 
  
 
A45D HAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT 135
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0076,374 Thermoelectric GeneratorSep 12, 16Mar 15, 18[H01L]
2018/0053,669 Temperature Controller of Semiconductor Wafer and Temperature Control Method of Semiconductor WaferAug 17, 16Feb 22, 18[H01L, G05B, G06F, G05D]
2016/0196,954 Circulating Cooling/Heating DeviceNov 07, 13Jul 07, 16[H01J, H01L]
2016/0196,991 CIRCULATION COOLING AND HEATING DEVICEJul 29, 14Jul 07, 16[H01J, H01L]
2016/0141,479 THERMOELECTRIC POWER MODULEJul 02, 14May 19, 16[H01L]
2016/0020,375 THERMOELECTRIC POWER GENERATION DEVICE AND THERMOELECTRIC POWER GENERATION METHOD USING THE SAMEMar 27, 14Jan 21, 16[H01L]
2016/0020,376 THERMOELECTRIC POWER GENERATION DEVICE AND THERMOELECTRIC POWER GENERATION METHODMar 27, 14Jan 21, 16[H01L]
2014/0345,666 THERMOELECTRIC ELEMENT AND THERMOELECTRIC MODULE PROVIDED WITH SAMEDec 10, 12Nov 27, 14[H01L]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9917238 Thermoelectric element and thermoelectric module provided with sameDec 10, 12Mar 13, 18[H01L]
9871179 Thermoelectric power moduleJul 02, 14Jan 16, 18[H01L]
9852888 Circulating cooling/heating deviceNov 07, 13Dec 26, 17[H01J, H01L, F28D]
9798308 Temperature controller for semiconductor wafer and temperature control method for semiconductor waferJan 09, 15Oct 24, 17[H01L, G05B, G05D]
9793462 Thermoelectric module, thermoelectric power generating apparatus, and thermoelectric generatorFeb 07, 13Oct 17, 17[H01L]
9752806 Temperature adjustment apparatusMay 17, 11Sep 05, 17[H01L, F25B]
9490412 Peltier module for laser diodeSep 12, 13Nov 08, 16[H01L, H01S]
9484231 Temperature controller for semiconductor manufacturing equipment, method for calculating PID constants in semiconductor manufacturing, and method for operating temperature controller for semiconductor manufacturing equipmentJul 18, 13Nov 01, 16[H01L, G05D]
9170036 Thermoelectric moduleDec 03, 13Oct 27, 15[H01L, F25B]
9062894 Fluid heating deviceMar 18, 10Jun 23, 15[F24H, F21V, F26B, G02B, F28D, F28F, A45D]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0230,872 THERMOELECTRIC GENERATORAbandonedOct 05, 12Aug 21, 14[H01L]
2014/0216,516 THERMOELECTRIC GENERATORAbandonedOct 05, 12Aug 07, 14[H01L]
2013/0152,604 FLUID TEMPERATURE ADJUSTING DEVICEAbandonedDec 19, 12Jun 20, 13[F25B]
2013/0152,605 FLUID TEMPERATURE ADJUSTING DEVICEAbandonedDec 19, 12Jun 20, 13[F25B]
2013/0098,068 TEMPERATURE CONTROL DEVICEAbandonedOct 18, 12Apr 25, 13[F25B]
2011/0315,985 SENSOR-FITTED SUBSTRATE AND METHOD FOR PRODUCING SENSOR-FITTED SUBSTRATEAbandonedFeb 10, 10Dec 29, 11[H01L, B82Y]
2011/0277,983 TEMPERATURE CONTROLLER, FLUID CIRCULATOR AND TEMPERATURE CONTROL METHOD USING TEMPERATURE CONTROLLERAbandonedMay 12, 11Nov 17, 11[F28D, F28F, F15D]
2011/0048,486 THERMOELECTRIC MODULEAbandonedAug 25, 10Mar 03, 11[H01L]
2010/0252,084 THERMOELECTRIC MODULEAbandonedNov 14, 08Oct 07, 10[H01L]
7748435 Temperature regulatorExpiredJul 29, 05Jul 06, 10[G05D]
2010/0031,989 THERMOELECTRIC MODULE AND METALLIZED SUBSTRATEAbandonedOct 22, 07Feb 11, 10[H01L]
7495542 Film temperature sensor and temperature sensing substrateExpiredAug 12, 05Feb 24, 09[H01C]
7364095 Apparatus for judging target to be temperature-regulatedExpiredJul 29, 05Apr 29, 08[G05D]

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