LANDIS+GYR LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 7095
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 1084
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 748
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 6441
 
  
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 555
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 572
 
  
 
H02B BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER 431
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 381
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 381
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS297

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0219,378 EXTERNAL ACCESS TO METER DISPLAYApr 18, 17Aug 03, 17[G06F, G01D]
2017/0016,943 Temperature Profiling in an Electricity MeterSep 27, 16Jan 19, 17[G01K, G01R]
2013/0115,901 Utility Meter Power Arrangements and MethodsApr 30, 12May 09, 13[H04B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9869698 Oscillator circuit with RF suppressionFeb 11, 11Jan 16, 18[H03B, G01R]
9829517 Service switch with high current arc protectionSep 24, 14Nov 28, 17[G01R]
9766318 Apparatus and method for measuring real time clock accuracy in an electricity meterJun 17, 14Sep 19, 17[G01R]
9753063 Load side voltage sensing for utility meterDec 29, 14Sep 05, 17[G01R, H02H]
9696357 Element resistance measurement in an electricity meterJun 28, 13Jul 04, 17[G01R]
9658254 Magnetic tampering detection in a utility meterJun 28, 13May 23, 17[G01R, G01D]
9625275 External access to meter displaySep 24, 07Apr 18, 17[G08C, G01D]
9618542 Self-shielded DI/DT transformer for a meterMay 09, 14Apr 11, 17[G01R]
9599638 Mechanical switch activity detection on power outageNov 08, 12Mar 21, 17[G01R, G01D]
9588149 Method and apparatus for detecting and compensating measurement errors due to transformer saturation in a meterJul 06, 15Mar 07, 17[G01R]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0036,624 STRESS CONDITION LOGGING IN UTILITY METERAbandonedAug 07, 09Feb 11, 10[G06F, G01R]
2010/0036,625 Temperature Profiling in an Electricity MeterAbandonedAug 07, 09Feb 11, 10[G06F, G01R]
2008/0266,133 Method and Arrangement for Communicating with a Meter Peripheral Using a Meter Optical PortAbandonedSep 26, 07Oct 30, 08[G08B]
2005/0240,362 External transformer correction in an electricity meterAbandonedJul 01, 05Oct 27, 05[G06F]
2005/0212,689 Utility meter power arrangements and methodsAbandonedFeb 10, 05Sep 29, 05[G08B]
2005/0119,841 Method of timing demand and time-of-use functionality with external clock sourceAbandonedNov 08, 04Jun 02, 05[G06F]
5066906 Time of use register for use with a utility meterExpiredSep 22, 89Nov 19, 91[G01R]
5049810 Watt-hour meter cover with battery hatch reset switch and optical communication portExpiredSep 22, 89Sep 17, 91[G06C, G01R]
4998061 Watthour meter with temperature compensation for wye connected systemsExpiredDec 15, 89Mar 05, 91[G01R]
4987363 Electric energy meter with power outage recovery circuitExpiredSep 25, 89Jan 22, 91[G01R]
4902964 Program clock for an electronic demand register with automatic calibration based on sensed line frequencyExpiredSep 21, 87Feb 20, 90[G01R]
4896106 Watthour meter for wye connected systemsExpiredSep 21, 87Jan 23, 90[G01R]
4887028 Watthour meter with isolation transformers having a feedback loopExpiredSep 21, 87Dec 12, 89[G01R, H01F]
4801874 Method and apparatus for measuring electricityExpiredFeb 27, 87Jan 31, 89[G01R]

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