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TRUECOLOUR FILM LTD

Overview
  • Total Patents
    26
About

TRUECOLOUR FILM LTD has a total of 26 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United Kingdom, United States and Belgium. Its main competitors in its focus markets optics and measurement are NEUE PHOTOGRAPHISCHE GES AG, CINECOLOR INC and MANNES LEOPOLD D.

Patent filings in countries

World map showing TRUECOLOUR FILM LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 19
#2 United States 4
#3 Belgium 1
#4 Germany 1
#5 France 1

Patent filings per year

Chart showing TRUECOLOUR FILM LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Measurement

Focus technologies

Top inventors

# Name Total Patents
#1 Hubert Reindorp John 3
#2 Edgar Sanders-Dolgoruki 3
#3 Gilbert Alan 1
#4 Sanders-Dolgoruki Edgar 1

Latest patents

Publication Filing date Title
GB491410A Exposure controlling device for kinematograph or photographic cameras
GB505099A Colour photography and cinematography
US2163325A Color photography or cinematography
GB486174A Photographic light sensitive material and method for use in the production of colour photographic prints
GB498762A Photographic material for colour photography and kinematography
GB498749A Colour photography and kinematography
GB491613A Photometric instrument for measuring light values
GB480291A Colour photography and kinematography
GB472147A Instrument for determining exposures for photographic purposes
GB474949A Production of relief photographic images
GB488499A Improvements in timing devices for camera shutters
GB475225A Improvements in kinematograph picture films bearing sound records
GB483020A Improvements in colour photography and kinematography
GB480287A Colour photography and kinematography
GB465765A Colour photography or kinematography
GB465090A Colour photography or kinematography
GB480251A Colour photography and kinematography
GB467380A Photographic material for colour photography or kinematography
GB460452A Improvements in light measuring devices