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HAMBURGER HOCHBAHN AKT GES

Overview
  • Total Patents
    20
About

HAMBURGER HOCHBAHN AKT GES has a total of 20 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Germany. Its main competitors in its focus markets transport, civil engineering and electrical machinery and energy are DIMETRONIC SA, OTIS AUTOMATIC TRAIN CONTROL I and ARTHUR GREENWOOD KERSHAW.

Patent filings in countries

World map showing HAMBURGER HOCHBAHN AKT GESs patent filings in countries
# Country Total Patents
#1 Germany 20

Patent filings per year

Chart showing HAMBURGER HOCHBAHN AKT GESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Langhein Dipl-Ing Walter Heinr 2
#2 Luetjen Dipl-Ing Albert Heinri 1
#3 Luetjen Dipl-Ing Albert 1
#4 Pein Wilhelm Von 1

Latest patents

Publication Filing date Title
DE701081C Device for regulating the brake cylinder pressure
DE686463C Multi-position switch
DE665853C Vehicle dependency circuit for switching on and off travel lock devices
DE707008C Sand spreading device for rail vehicles
DE653153C Device for switching on and off travel lock devices on railcars
DE660188C Travel lock device for rail vehicles
DE593443C Stamp device with several endless type bands
DE570434C Elastic rail wheel
DE461762C Mechanical locking register for electrical signal boxes
DE492155C Travel lock device on rail vehicles
DE468572C Device for securing travel lock devices on rail vehicles
DE559179C Rail pull-out device for grooved rails using flat tabs
DE457166C Sealing on pneumatically operated quick-release hammers with an external return spring, especially for track tamping
DE667035C Checking device for vehicle dependency circuits for travel locks
DE456860C Busbar bridging at points
DE503824C Rail grinding car
DE596736C Electric rail brake
DE536557C Rail grinding device pivotable around the rail as a rotation axis
DE548652C Rail pull-out device for grooved rails using run-up tabs
DE488107C Self-acting contact device that is located in the coupling head of a universal coupling