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LEWIN ROAD SWEEPERS LTD

Overview
  • Total Patents
    50
About

LEWIN ROAD SWEEPERS LTD has a total of 50 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, environmental technology and consumer goods are HESTAIR EAGLE LTD, HENAN LUTAI ROAD MAINTENANCE MACHINERY CO LTD and TAE KYUNG ENG CO LTD.

Patent filings in countries

World map showing LEWIN ROAD SWEEPERS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 27
#2 Canada 9
#3 France 5
#4 United States 5
#5 Germany 4

Patent filings per year

Chart showing LEWIN ROAD SWEEPERS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dear Alexander Thomas Cameron 20
#2 Dear Alexander T C 8
#3 Merther Kenneth Leslie 7
#4 Cameron Dear Alexander Thomas 5
#5 Merther Kenneth L 3
#6 Leslie Merther Kenneth 2
#7 Lambert Alfred Walter 1
#8 Holtom Oliver George 1

Latest patents

Publication Filing date Title
GB918526A Improvements in or relating to brushes
GB861958A Improvements in or relating to brushes
GB830453A Improvements in or relating to road sweeping machines
GB830451A Improvements in or relating to road sweeping machines
GB830454A Improvements in or relating to road sweeping machines
GB761183A Improvements in or relating to refuse collecting vehicles
GB744065A Improvements in or relating to sweeping machines for use in sweeping road and other surfaces
GB700415A Improvements in or relating to road sweeping vehicles
GB685546A Improvements in or relating to refuse collecting vehicles
GB685548A Improvements in or relating to road sweeping vehicles
GB685545A Improvements in or relating to refuse collecting vehicles
US2488965A Refuse collecting vehicle
US2488966A Refuse collecting vehicle
GB633852A Improvements in or relating to refuse collecting vehicles
GB633853A Improvements in or relating to refuse collecting vehicles
GB633851A Improvements in or relating to refuse collecting vehicles
US2469033A Refuse collector
GB611758A Improvements in or relating to refuse collectors
GB608403A Improvements in or relating to road sweeping vehicles
GB608402A Improvements in or relating to road sweeping and refuse collecting machines