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RAILWAY SIGNAL COMPANY LTD

Overview
  • Total Patents
    19
About

RAILWAY SIGNAL COMPANY LTD has a total of 19 patent applications. Its first patent ever was published in 1914. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets transport, electrical machinery and energy and measurement are JOSEF FRYBA, VER EISENBAHN SIGNALWERKE GMBH and ALFRED MONARD.

Patent filings in countries

World map showing RAILWAY SIGNAL COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 United States 6
#3 Canada 4
#4 France 1

Patent filings per year

Chart showing RAILWAY SIGNAL COMPANY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roberts Walter Sydney 6
#2 Sydney Roberts Walter 5
#3 Hallam Burton Joseph 2
#4 Hedley Nicholson John 1
#5 Burton Joseph Hallm 1
#6 Burton Joseph Hallam 1
#7 Nicholson John Hedle 1
#8 Nicholson John Hedley 1
#9 Guthrie Herbert James 1
#10 Constable George 1

Latest patents

Publication Filing date Title
GB882842A Improvements relating to mechanical signalling apparatus for railways
GB523361A Improvements relating to facing points for railways and the like
GB519890A Improvements in connection with token exchanging apparatus for railways
GB503790A Improvements relating to token systems for the control of railway and like traffic
US1832583A Rotary electro-magnetic mechanism
US1615652A Traffic controlling apparatus for railways
US1632246A Token system
US1636068A Railway point, signal, and the like
US1331379A Apparatus for operating railway and tramway points, signals, and the like
GB103134A Improvements in Apparatus for Operating Railway and Tramway Points, Signals, and the like.
US1234806A Token instrument for use on single-line railways or tramways.
GB191421788A Improvements in, or connected with, Token Instruments for use on Single Line Railways, or Tramways.
GB191420197A Improvements in connection with Block, Staff, or Token, Systems and Apparatus, for Controlling Traffic on Railways.
GB191420196A Improvements in and relating to Locking Mechanism for use with Railway Signals and the like.
CA363379A Railway traffic token system
CA266597A Railway signal apparatus
CA263664A Token instrument
CA263663A Lock for railway points and signal apparatus