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WILISCH ERHART DR

Overview
  • Total Patents
    55
About

WILISCH ERHART DR has a total of 55 patent applications. Its first patent ever was published in 1933. It filed its patents most often in Germany, Austria and Switzerland. Its main competitors in its focus markets transport and civil engineering are HANNAUER CAR RETARDER COMPANY, SHAPOVALOV VLADIMIR VLADIMIROV and BEIJING CONTROL INFRARED TECHNOLOGY CO LTD.

Patent filings in countries

World map showing WILISCH ERHART DRs patent filings in countries
# Country Total Patents
#1 Germany 35
#2 Austria 10
#3 Switzerland 5
#4 Netherlands 4
#5 Denmark 1

Patent filings per year

Chart showing WILISCH ERHART DRs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Wilisch Erhart Dr 28
#2 Lotze Berthold 22
#3 Wilisch Dr Erhart 13
#4 Erhart Wilisch Dr 2

Latest patents

Publication Filing date Title
DE3443480A1 Track brake buffer
DE3422230A1 Track brake element
DE2932775A1 BUMPER, ESPECIALLY AS A LOCK SAFETY IN THE MANGING STATION
DE2755565A1 BUMPER FOR RAIL VEHICLES
DE2711819A1 BRAKING BUFFER DEVICE FOR PRELLBOECKE
DE2711676A1 BUMPER STOP WITH BRAKING BUFFER DEVICE
DE2710965A1 Buffer to temporarily block rail track - has two sections hinged at track sides and biassed to stand-by position by springs
DE2453223A1 High speed rail brake buffer stop - with jolt absorbing triangles on sliding mounting on rail head