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HUNTER PENROSE LTD

Overview
  • Total Patents
    36
About

HUNTER PENROSE LTD has a total of 36 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets optics, textiles and paper and machines are HUEBNER BLEISTEIN PATENTS COMP, ZELACOLOR SYST and PICTORIAL MACHINERY LTD.

Patent filings in countries

World map showing HUNTER PENROSE LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 19
#2 United States 6
#3 Germany 4
#4 France 4
#5 Canada 3

Patent filings per year

Chart showing HUNTER PENROSE LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kilminster Arthur R 6
#2 Messenger George Edward 6
#3 Laws Harold Edwin 5
#4 Koellner Walter 4
#5 Kilminster Arthur Roy 3
#6 William Batchelor Dennis Arthu 1
#7 Edward Messenger George 1
#8 Roy Kilminster Arthur 1
#9 Medcalf Henry Victor George 1
#10 Ash Bernard Edwin 1

Latest patents

Publication Filing date Title
DE1268957B Device for the production of electronically corrected negative color separations
US3041932A Photographic colour reproduction apparatus
US3019703A Photographic colour reproduction apparatus
GB856423A Improvements in or relating to photographic colour reproduction apparatus
US2968214A Modification of the light response from a coloured original
GB775809A An improved method of and machine for applying a liquid to lithographic or similar plates
GB790683A Improvements in or relating to photographic colour reproduction systems
GB758042A Improvements in or relating to photographic reproduction cameras
GB745703A Improvements in or relating to photographic darkslides
DE940623C Device for applying a liquid coating material to a cylinder that can be rotated about its axis with a spray device that can be moved axially to the cylinder
DE1076494B Frame mounted on a rack for preferably pneumatic copying devices
GB700948A Improvements in or relating to whirling machines for coating lithographic plates
GB709949A Improvements in or relating to frames for photographic contact or projection printing
GB732435A Improvements in or relating to apparatus for applying a fluid coating material to a cylinder
US2717544A Reproduction camera
GB699515A Improvements in or relating to offset printing presses
GB699517A Improvements in or relating to offset printing presses
GB699516A Improvements in or relating to lithographic offset printing presses
GB706768A Improvements in or relating to photographic reproduction cameras
DE852202C Control device for copier machines for repeated production of images