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GRAVITY LADDERS LTD

Overview
  • Total Patents
    23
About

GRAVITY LADDERS LTD has a total of 23 patent applications. Its first patent ever was published in 1938. It filed its patents most often in United Kingdom, Canada and France. Its main competitors in its focus markets civil engineering, mechanical elements and transport are LOUISVILLE LADDER INC, TELESTEPS AB and CLARKE J B.

Patent filings in countries

World map showing GRAVITY LADDERS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 20
#2 Canada 1
#3 France 1
#4 United States 1

Patent filings per year

Chart showing GRAVITY LADDERS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lawson-King John 3
#2 Riley Frederick William 1
#3 Mark Boor Laurence 1
#4 Boor Laurence Mark 1
#5 Bostock Cecil William 1
#6 Doolittle George William 1
#7 Jones Leslie Walter 1

Latest patents

Publication Filing date Title
GB1002392A Step ladders
GB766129A Improvements in or relating to ladders
GB744090A Improvements in or relating to extending ladders
GB731377A Improvements in or relating to ladders
GB686784A Improvements in or relating to weather or draught excluding means for vehicle bodies
GB685058A Improvements in extending ladders
GB654320A Improvements in or relating to ladders
GB654321A Improvements in or relating to ladders
GB649667A Improvements in or relating to ladders
GB636040A Improvements in or relating to ladders
GB624591A Improvements in or relating to extending ladders
GB620643A Improvements in or relating to ladders
GB592696A Improvements in or relating to ladders
GB587952A Improvements in or relating to ladders
GB583138A Improvements in or relating to ladders
GB580789A A new or improved clothes-airer
GB586044A A new or improved step ladder
GB585705A A new or improved folding ladder
GB583243A Improvements in or relating to rivetted joints
GB574571A Improvements in or relating to extending ladders