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WALBROEHL H T DIPL ING

Overview
  • Total Patents
    22
About

WALBROEHL H T DIPL ING has a total of 22 patent applications. Its first patent ever was published in 1970. It filed its patents most often in EPO (European Patent Office), Germany and Austria. Its main competitors in its focus markets civil engineering are WALBROEHL H T, GEBIRGSSICHERUNG GMBH and HYUN ENG AND CONSTRUCTION CO LTD.

Patent filings in countries

World map showing WALBROEHL H T DIPL INGs patent filings in countries
# Country Total Patents
#1 EPO (European Patent Office) 10
#2 Germany 5
#3 Austria 3
#4 Netherlands 2
#5 Switzerland 1
#6 Spain 1

Patent filings per year

Chart showing WALBROEHL H T DIPL INGs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Shafts
#2 Foundations and excavations
#3 Dredging

Top inventors

# Name Total Patents
#1 Walbroehl Heinz-Theo Dipl-Ing 6
#2 Walbrohl Heinz-Theo Dipl-Ing 4
#3 Walbroehl Heinz-Theo Dipl Ing 4
#4 Heinz Theo Dipl-Ing Walbroehl 1

Latest patents

Publication Filing date Title
DE19714461C1 Device for controlling the circumference of a knife sheath
EP0258699A1 Cutter drive shield and method for driving and/or lining tunnels or the like
DE3043312A1 METHOD AND DEVICE FOR DRIVING A SLIDE SHUTTER
DE2746349A1 Controllable blade drive for tunnel construction - has blades interlocked by flanges to aid negotiation of small radii of curvature
DE2742332A1 METHOD AND DEVICE FOR HORIZONTAL AND VERTICAL CONTROL OF KNIFE DRIVES
ES390119A1 Shiftable support for use in tunnels, mines and the like