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C H JOHNSON MACHINERY LTD

Overview
  • Total Patents
    39
About

C H JOHNSON MACHINERY LTD has a total of 39 patent applications. Its first patent ever was published in 1946. It filed its patents most often in United Kingdom, France and Canada. Its main competitors in its focus markets packaging and shipping, transport and civil engineering are WILLY SIEBERT, GANGNAM MECHANICAL ENGINEERING and LERAY JULES.

Patent filings in countries

World map showing C H JOHNSON MACHINERY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 24
#2 France 8
#3 Canada 2
#4 United States 2
#5 Germany 1
#6 Denmark 1
#7 Finland 1

Patent filings per year

Chart showing C H JOHNSON MACHINERY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dearden Brian Burton 13
#2 Dearden Brian B 3
#3 Wright Frank James 2
#4 Battine Roy Arthur 1
#5 Inglis George Sidley 1
#6 Burton Dearden Brian 1
#7 Arthur Hartley John 1
#8 Bradshaw Hannah Josephine 1
#9 Hartley John Arthur 1

Latest patents

Publication Filing date Title
US3266599A Multi-purpose mechanical handling vehicle
FR1360667A Diaphragm type pump
GB966167A Improvements relating to de-watering the ground
GB997189A Improvements relating to diaphragm type pumps
GB958851A Improvements relating to transportable endless-belt type conveyor elevators
GB950834A Improvements relating to dumper vehicles
GB909312A Vehicles with removable skip bodies
GB909311A Filling skips from bunkers
DE1180320B Carrying frame for containers that can be lifted off a vehicle
GB855418A Improvements relating to dumper vehicles
GB862614A A new or improved control mechanism for change speed gear boxes
GB893544A Improvements relating to dumpers
GB850121A Improvements in or relating to dumpers and similar tipping vehicles
US2771279A Concrete vibrators
GB767960A Improvements in or relating to concrete vibrators
GB730075A Improvements relating to the mechanical handling of solid materials in bulk
GB719667A Improvements in and relating to conveyor elevators
GB729205A Improvements relating to transportable conveyor-elevators
GB676475A Improvements relating to rollers or drums for supporting conveyors
GB688759A Improvements relating to conveyor elevators