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RAVEN VINCENT LITCHFIELD

Overview
  • Total Patents
    16
About

RAVEN VINCENT LITCHFIELD has a total of 16 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets transport and engines, pumps and turbines are BEZER HENRY, LOWELL WINTSCH AUTOMATIC TRAIN and SIEMENS SIGNALLING COMPANY LTD.

Patent filings in countries

World map showing RAVEN VINCENT LITCHFIELDs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 Canada 3
#3 United States 3
#4 Austria 2

Patent filings per year

Chart showing RAVEN VINCENT LITCHFIELDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport
#2 Engines, pumps and turbines

Focus technologies

# Technology
#1 Guiding railway traffic
#2 Machines

Top inventors

# Name Total Patents
#1 Raven Vincent Litchfield 16
#2 Baister Charles 1

Latest patents

Publication Filing date Title
GB191224561A Improvements relating to the Cylinders of Locomotives.
GB191006859A Improvements in and relating to Railway Signal Apparatus.
CA110415A Railway signalling apparatus
CA110414A Railway signalling apparatus
CA110413A Railway signalling apparatus
US867152A Railway signaling apparatus.
US867151A Railway signaling apparatus.
US867150A Railway signaling apparatus.
GB190707527A Improvements in or relating to Railway Signalling Apparatus
GB190702705A Improvements in Railway Signalling Apparatus.
GB190614089A Improvements in Railway Signalling Apparatus.
GB190610507A Improvements in Railway Signalling Apparatus.
GB190503694A Improvements in Signalling Apparatus for Railways
GB189523384A Improved Means for Providing Trains with Automatic Signals.