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INST PRUEFFELD ELEKT

Overview
  • Total Patents
    240
About

INST PRUEFFELD ELEKT has a total of 240 patent applications. Its first patent ever was published in 1961. It filed its patents most often in German Democratic Republic, Germany and France. Its main competitors in its focus markets electrical machinery and energy, measurement and environmental technology are ALSTOM GRID SAS, AREVA T & D SAS and SOCOMEC SA.

Patent filings per year

Chart showing INST PRUEFFELD ELEKTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ermisch Jochen 22
#2 Gerlach Horst 15
#3 Haenisch Heinz 12
#4 Hertwig Norbert 12
#5 Welschinger Manfred 11
#6 Dienemann Hold 10
#7 Goetsch Alfred Dipl Ing 8
#8 Knoeschke Wolfgang 7
#9 Hoier Bernhard 7
#10 Deja Bernd 7

Latest patents

Publication Filing date Title
DD298179A5 Intelligent multi-stage resistor switch
DD298161A5 Circuit arrangement for a high voltage measurer
DD296393A5 Arrangement for the protection of capacitors
DD294828A5 Circuit arrangement for a pulse current simulator
DD293234A5 Circuit arrangement for impedance conversion
DD288674A5 Method and arrangement for measuring replacement magnetic fields or stroemes
DD286896A5 Linearization circuit for the pulse frequency modulation method
DD286897A5 Circuit arrangement for pulse preparation in the receiver of a measurement transmission device
DD282786A5 Method and arrangement for self-controling dc power generators
DD280829A1 Circuit arrangement for measuring the melt integral of fuses
DD280643A1 Circuit arrangement for torque limiting of dc voltage motors
DD277563A1 Circuit arrangement for avoiding over voltages on electrical equipment
DD277564A1 Circuit arrangement for the protection of electrical equipment from overvoltage
DD277542A1 Circuit arrangement for enhancing the voltage rise times when switching on electrical plants
DD299498A7 Circuit arrangement for synchronous control unit
DD273715A1 Coaxial ladder assembly with thermal lens compensation
DD272516A1 Method and arrangement for contactless measurement of replacement magnetic fields or stroemes
DD272518A1 Method and arrangement for contactless measurement of magnetic fields
DD272517A1 Method and arrangement for touchless measurement of high-strounds with a changed range of measurement
DD268802A1 Process for limiting and shut-off of short-term streams