Basic Measuring Instruments, Inc.

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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 4155
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04M TELEPHONIC COMMUNICATION 1162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5808902 Power quality transducer for use with supervisory control systemsMay 23, 96Sep 15, 98[H04B, G06F]
5581471 Method and apparatus for storing electric power measurementsApr 08, 94Dec 03, 96[G01R]
5481468 Method and apparatus for storing an increasing number of sequential real-time samples in a fixed amount of memoryAug 04, 92Jan 02, 96[G01R]
5408523 Electronic remote data recorder with facsimile output for utility AC power systemsJun 22, 92Apr 18, 95[H04M]
5347464 High-pass filter for enhancing the resolution of AC power line harmonic measurementsSep 22, 92Sep 13, 94[G06F, G01R]
5212441 Harmonic-adjusted power factor meterFeb 25, 92May 18, 93[G01R]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5742153 Coasting power supply for AC power system waveform measuring instrumentExpiredDec 28, 93Apr 21, 98[G05F]
5471401 Waveform library for characterizing an AC power line spectrumExpiredSep 09, 92Nov 28, 95[G01R]
5307009 Harmonic-adjusted watt-hour meterExpiredOct 06, 92Apr 26, 94[G01R]
5302890 Harmonic-adjusted power factor meterExpiredOct 06, 92Apr 12, 94[G01R]
5300924 Harmonic measuring instrument for AC power systems with a time-based threshold meansExpiredAug 21, 92Apr 05, 94[G08B]
5298854 Harmonic-adjusted watt-hour meterExpiredOct 06, 92Mar 29, 94[G01R]
5298855 Harmonic-adjusted power factor meterExpiredOct 06, 92Mar 29, 94[G01R]
5298856 Harmonic-adjusted power factor meterExpiredOct 06, 92Mar 29, 94[G01R]
5298859 Harmonic-adjusted watt-hour meterExpiredFeb 25, 92Mar 29, 94[G01R]
5298885 Harmonic measuring instrument for AC power systems with poly-phase threshold meansExpiredAug 21, 92Mar 29, 94[G08B]
5298888 Harmonic measuring instrument for AC power systems with latched indicator meansExpiredAug 21, 92Mar 29, 94[G08B]
5270637 Impulse direction detector for ac power systemsExpiredJul 22, 92Dec 14, 93[G01R]
5184066 Method and apparatus for disabling all operations of an electronic instrument except for an automatic test procedureExpiredApr 24, 91Feb 02, 93[G06F, G01R]
5089979 Apparatus for digital calibration of detachable transducersExpiredFeb 08, 89Feb 18, 92[G06F]
5014229 Method and apparatus for calibrating transducer/amplifier systemsExpiredFeb 08, 89May 07, 91[G01R]
4694402 Waveform disturbance detection apparatus and methodExpiredMay 28, 85Sep 15, 87[G01R]
4642563 Power line impulse measurement systemExpiredMay 28, 85Feb 10, 87[G01R]

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