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SCHWIHAG GMBH

Overview
  • Total Patents
    197
About

SCHWIHAG GMBH has a total of 197 patent applications. Its first patent ever was published in 1971. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets civil engineering, transport and biotechnology are HESSE G M B H E, KANG WON RAIL WAY SYSTEM CO LT and SCHWIHAG AG.

Patent filings per year

Chart showing SCHWIHAG GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heim Armin 101
#2 Schwiede Karl-H 36
#3 Keusch Siegfried 29
#4 Horn Johannes 19
#5 Schwiede Karl-Heinz 19
#6 Klein Volker 17
#7 Heim A 17
#8 Scholte Hans-Joachim 15
#9 Ohm K 13
#10 Spiegel K 13

Latest patents

Publication Filing date Title
DE102006021683A1 Hollow box sleeper
DE102005048829A1 Positive-elastic rail fastening for track systems
DE102005021636A1 Railway sleeper, in particular hollow sleeper
GB0418873D0 Fastening device for fixing a stock rail in a set of railway points
DE10321604A1 box sleeper
DE10249500A1 Device for fastening rails
DE10057882A1 Railway track system with hollow box sleepers in the drive area of a switch
DE19842929A1 Device for attaching wheel links
WO9747813A1 Switching device for switch tongues
WO9747814A1 Heating system for box-type sleepers
DE19623286A1 Point system
DE19623269A1 Switch tongues
DE4315200A1 Crossbar with adjustment device for switch tongues
DE4234007A1 Footrest modification for railroad tracks
DE3827773A1 Fastening device for rails
DK309588D0 Device for determining a skin to a sleep
GR871697B Arrangement for fixing rails on a cross girder
YU192187A Device for fastening rail to under supportive wooden element
DE3643742A1 UNDERPLATE FOR FIXING RAILS OF RAILWAY TRACKS AND SWITCHES ON WOODEN SLEEPERS
DE3634231A1 Railway switch points with component locking mechanism - secures components rigidly by brackets through rail webs