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HADLEY COMPANY LTD

Overview
  • Total Patents
    23
About

HADLEY COMPANY LTD has a total of 23 patent applications. Its first patent ever was published in 1933. It filed its patents most often in United Kingdom, Canada and France. Its main competitors in its focus markets optics, machines and weapons are LOGO, PROHERO GROUP CO LTD and KIM JANG RAK.

Patent filings in countries

World map showing HADLEY COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 19
#2 Canada 2
#3 France 1
#4 United States 1

Patent filings per year

Chart showing HADLEY COMPANY LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machines
#3 Weapons

Top inventors

# Name Total Patents
#1 Rosser Glynne David 5
#2 Burnett Percy 2
#3 Rosser Neil Kenneth Glynne 2
#4 Johnson Francis Carl 1
#5 Rosser David Geoffrey Ian 1
#6 Carl Johnson Francis 1
#7 Alexander George Donald 1

Latest patents

Publication Filing date Title
GB905189A Improvements in spectacle frames
GB900715A Improvements relating to the securing of nose pads to spectacle frames
GB781330A Improvements relating to spectacle frames
GB762321A Improvements in spectacle frames
GB761088A Improvements in spectacle frames
GB762773A Improvements in spectacle frames
GB721651A Improvements relating to spectacle frames
GB730208A Improvements relating to spectacles
GB717290A Improvements relating to spectacle frames or sun-glasses
GB665161A Improvements relating to spectacle frames
GB588115A Improvements relating to spectacle frames
GB581535A Improvements relating to mountings for spectacle lenses
GB538808A Improvements in chutes or guides for machine-gun cartridge belts
GB535407A Improvements in the production of moulded hollow articles
GB528984A Improvements in goggles
GB524202A Improvements in moulded chutes or guides for machine-gun cartridge belts
GB465244A Improvements relating to spectacle frame hinges
GB436421A Improvements in the manufacture of spectacle frames
GB415164A Improvements in spectacle sides and bridges
CA406703A Chute or guide for machine-gun cartridge belt