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EDWIN HERBERT LAND

Overview
  • Total Patents
    15
About

EDWIN HERBERT LAND has a total of 15 patent applications. Its first patent ever was published in 1932. It filed its patents most often in United Kingdom and Australia. Its main competitors in its focus markets optics, electrical machinery and energy and audio-visual technology are WALTER CHAPMAN, SIRIUS KLEUREN FILM MIJ and BREWSTER FILM CORP.

Patent filings in countries

World map showing EDWIN HERBERT LANDs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 Australia 4

Patent filings per year

Chart showing EDWIN HERBERT LANDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Land Edwin Herbert 4
#2 Bloom Stanley Morton 3
#3 Rogers Howard Gardner 3

Latest patents

Publication Filing date Title
AU5843473A Diffusion transfer films with anti-reflection layers and processes
AU5046472A Diffusion transfer color processes and products and compositions useful therein
AU5046572A Color diffusion transfer photographic products and processes with sulfur free silver halide solvents
GB521378A Improvements relating to optical polarizing devices
GB514860A Improvements relating to light-polarizing material
GB490888A Viewing screens for use in optical systems employing polarized light
GB504557A Improvements relating to optical polarizing apparatus
GB499403A Improvements in and relating to methods of viewing stereoscopic images or pictures and to apparatus therefor
GB486111A Improvements in and relating to optical systems
GB442825A Improvements in and relating to sun glasses
GB433455A Improvements in and relating to polarizing bodies
GB429925A New and improved colloidal suspensions and the process of making same
GB423874A Light valve and method of operation
GB412179A Polarizer and method of making same