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ROCHAR ELECTRONIQUE

Overview
  • Total Patents
    137
About

ROCHAR ELECTRONIQUE has a total of 137 patent applications. Its first patent ever was published in 1954. It filed its patents most often in France, United Kingdom and Germany. Its main competitors in its focus markets basic communication technologies, measurement and computer technology are ANDRAE LEONBERG GMBH, CONTROL COMPANY INC COMP and JIANGXI SANCHUAN WATER METER CO LTD.

Patent filings in countries

World map showing ROCHAR ELECTRONIQUEs patent filings in countries
# Country Total Patents
#1 France 79
#2 United Kingdom 26
#3 Germany 16
#4 United States 9
#5 Canada 4
#6 Switzerland 2
#7 Denmark 1

Patent filings per year

Chart showing ROCHAR ELECTRONIQUEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Charbonnier Roger 26
#2 Roger Charbonnier 9
#3 Picot Clement 5
#4 Estrabaud Stephane 3
#5 Penet P 2
#6 Meudon-Bellevue 1
#7 Clement Picot 1
#8 Peet Pierre-Marie 1
#9 Estrabaud St Jean Eric 1
#10 Stephane Estrabaud 1

Latest patents

Publication Filing date Title
GB1103938A Insulating quadripole
US3488484A Computing device for computing the logarithm of the ratio of two voltages
GB1126036A Multiplication device
DE1473849A1 Ultrasonic device for measuring the thickness of objects
DE1269167B Apparatus and method for converting an analog signal into numerical information using a memory device
DE1498431A1 Device for interrupting the flow of liquid for flow meter
GB1089860A Method and apparatus for measuring the mass flow rate of gaseous hydrocarbons
DE1235040B Numerical comparator or comparator
DE1499251A1 Method and device for numerical subtraction and its application for the control of machine tools
GB1038287A Calibration arrangement for flow meters
US3324707A Method and apparatus for calibrating flow meters
DE1226150B Circuit arrangement for comparing the amplitudes of an input voltage and a cyclical reference voltage
GB1027727A Improvements in or relating to electronic method and apparatus for control of displacements
GB992197A Improvements in or relating to electronic pulse counting systems
GB988039A Improvements in or relating to computer devices
GB1006719A Improvements in or relating to transistor bistable circuits
GB941457A Improvements in or relating to sensing devices for ultrasonic inspection of rails
GB954260A Improvements in or relating to transistor bistable circuits
GB944633A Improvements in or relating to decoding circuits
GB957491A Improvements in or relating to transistor chopper circuits