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BIELEFELDER ELEKTROTECHNISCHE

Overview
  • Total Patents
    28
About

BIELEFELDER ELEKTROTECHNISCHE has a total of 28 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Germany, Austria and Switzerland. Its main competitors in its focus markets transport, electrical machinery and energy and civil engineering are A T AUSTIN, RUTHVEN ALFRED L and PATENALL FRANK P J.

Patent filings in countries

World map showing BIELEFELDER ELEKTROTECHNISCHEs patent filings in countries
# Country Total Patents
#1 Germany 24
#2 Austria 2
#3 Switzerland 2

Patent filings per year

Chart showing BIELEFELDER ELEKTROTECHNISCHEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kirchmann Guenter 4
#2 Bertram Werner 4
#3 Wienkamp Walter 3
#4 Glockmann Werner 2
#5 Werner Bertram 2
#6 Alt Erich 1
#7 Hanning Robert 1
#8 Hanning Adolf 1
#9 Tegtmeier Hans-Dieter 1
#10 Kirchmann G 1

Latest patents

Publication Filing date Title
DE2353398A1 THREE-PHASE MOTOR
DE2113518A1 Heating device for grooved switches on a railroad track
DE1902687A1 Circuit arrangement for monitoring track magnets for inductive train control systems
DE1804554A1 Circuit arrangement of an electronic switch switch device
DE1802876A1 Electromagnetic rail brake
DE1763900A1 DC voltage converter, especially for power supply of switchgear for electrical railway systems
DE1780064A1 Circuit arrangement for blocking and releasing electrical switchgear for railway systems
DE1763497A1 Circuit arrangement of a contactless quick switch
DE1755219A1 Track circuit circuit arrangement
DE1755105A1 Adjusting device with tongue checker for a rail switch
DE1269639B Arrangement for the transmission of electrical signals between a rail vehicle and the route
DE1283863B Spring-loaded brake, especially for rail vehicles
DE1528393A1 Device for keeping flat objects from the suction head of a water pump
DE1236016B Coupling arrangement for feeding modulated medium or high frequency voltages onto a rail
DE1236017B Decoupling arrangement for taking a modulated medium or high frequency voltage from a running rail
DE1455347A1 Point setting device with internal lock
DE1225693B Electrical circuit arrangement for controlling points from the vehicle
DE1167874B Braking device, especially for rail vehicles
DE1455342A1 Circuit arrangement for controlling electrically operated systems from a rail vehicle
DE950066C Electromagnetic rail brake in connection with deck rail brake devices