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WILLIAM VAN DOREN KELLEY

Overview
  • Total Patents
    14
About

WILLIAM VAN DOREN KELLEY has a total of 14 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United Kingdom, Germany and France. Its main competitors in its focus markets optics and electrical machinery and energy are MIMOSA AKT GES, FRANZ PILLER and FILM FABRIKATION AG F.

Patent filings in countries

World map showing WILLIAM VAN DOREN KELLEYs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 Germany 2
#3 France 1

Patent filings per year

Chart showing WILLIAM VAN DOREN KELLEYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Electrical machinery and energy

Focus technologies

# Technology
#1 Photosensitive materials
#2 Cameras
#3 Electric switches

Top inventors

# Name Total Patents
#1 Kelley William Van Doren 1
#2 Raleigh Charles 1
#3 Kelley William Bon Doren 1

Latest patents

Publication Filing date Title
GB414998A Color-filter material and preparation thereof
GB402113A Color-cinematography
GB333931A Improvements in and relating to colour photography
GB333933A Improvements in colour photography
GB333932A Improvements in or relating to film cameras
GB193362A Improvements in or relating to colour photography
GB193363A Improvements in or relating to colour photography
GB193069A Improvements in or relating to colour photography
GB193364A Improvements in or relating to colour photography
GB160137A Improved process for treating and dyeing photographic images and products obtained thereby
GB191422921A Color Kinematography.