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TANDY CORPORATION
Patent Owner
Stats
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73
total patents issued
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0 Total Apps Published
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May 21, 2002 most recent publication
Details
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73 Issued Patents
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0 Issued in last 3 years
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0 Published in last 3 years
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1,513 Total Citation Count
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Jul 27, 1978 Earliest Filing
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63 Expired/Abandoned/Withdrawn Patents
Technologies
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3123
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 2125
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 262
H04M TELEPHONIC COMMUNICATION 2130
G06F ELECTRIC DIGITAL DATA PROCESSING 1306
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 195
Top Patents (by citation)
5,090,052 Telephone system with multiple extension telephonesApr 09, 91Feb 18, 92[H04M]63 5,479,083 Non-dissipative battery charger equalizerJun 21, 93Dec 26, 95[H01M]40 5,294,889 Battery operated capacitance measurement circuitMar 27, 92Mar 15, 94[G01R]40 5,208,801 Method and apparatus for correcting focus in an optical recording systemAug 23, 91May 04, 93[G11B]22 5,396,168 Digital multimeter with microprocessor controlMar 27, 92Mar 07, 95[G01R]14 5,606,481 Overvoltage protection for battery powered equipmentSep 26, 94Feb 25, 97[H02H]5 5,373,410 Single string resistive divider network for a digital multimeterMar 27, 92Dec 13, 94[H02H]5 5,128,921 Method and apparatus for pre-compensation in an optical discJun 20, 91Jul 07, 92[G11B]5 5,341,089 Voltage to decibel converter having partial table lookupMar 27, 92Aug 23, 94[G01R]3
Recent Publications
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No Recent Publications to Display
Recent Patents
5,606,481 Overvoltage protection for battery powered equipmentSep 26, 94Feb 25, 97[H02H] 5,479,083 Non-dissipative battery charger equalizerJun 21, 93Dec 26, 95[H01M] 5,402,468 Telephone answering device with standardized internal busJun 15, 92Mar 28, 95[H04M, G06F] 5,396,168 Digital multimeter with microprocessor controlMar 27, 92Mar 07, 95[G01R] 5,373,410 Single string resistive divider network for a digital multimeterMar 27, 92Dec 13, 94[H02H] 5,341,089 Voltage to decibel converter having partial table lookupMar 27, 92Aug 23, 94[G01R] 5,294,889 Battery operated capacitance measurement circuitMar 27, 92Mar 15, 94[G01R] 5,208,801 Method and apparatus for correcting focus in an optical recording systemAug 23, 91May 04, 93[G11B] 5,128,921 Method and apparatus for pre-compensation in an optical discJun 20, 91Jul 07, 92[G11B] 5,090,052 Telephone system with multiple extension telephonesApr 09, 91Feb 18, 92[H04M]
Top Inventors for This Owner
