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JOHNSTON BROTHERS CONTRACTORS

Overview
  • Total Patents
    35
About

JOHNSTON BROTHERS CONTRACTORS has a total of 35 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United Kingdom and Canada. Its main competitors in its focus markets civil engineering, basic materials chemistry and transport are MOOSER HANDELSAGENTUR GMBH, METAL FORMS CORP and HAYAT ROGER.

Patent filings in countries

World map showing JOHNSTON BROTHERS CONTRACTORSs patent filings in countries
# Country Total Patents
#1 United Kingdom 34
#2 Canada 1

Patent filings per year

Chart showing JOHNSTON BROTHERS CONTRACTORSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hobbs James E 1

Latest patents

Publication Filing date Title
GB955187A Improvements in or relating to distributors for controlling a stream of material discharged from a vehicle
GB935713A Improvements in or relating to driving attachments for road wheels of vehicles
GB901065A Improvements in or relating to struts
GB906444A Improvements in or relating to apparatus for delivering materials from vehicles
GB892227A Improvements in or relating to apparatus for forming grooves in unset concrete
GB903111A Improvements in or relating to machines for finishing concrete surfaces
GB908142A Improvements in or relating to apparatus for applying shoring to the sides of trenches
GB889507A Improvements in or relating to adjustable struts
GB818004A Improvements in or relating to road surfacing machines
GB757229A Improvements in or relating to apparatus for planing, cutting or scraping road surfaces
GB758527A Improvements in or relating to shoring devices for sewers, trenches and pits in the ground
GB762481A Improvements in or relating to apparatus for applying shoring to the sides of trenches
GB743532A Improvements in or relating to shuttering for casting concrete
GB736517A Improvements in or relating to apparatus for clearing accumulated matter from the sides or from the channels or gutters at the sides of highways
GB740702A Improvements in or relating to road clearing or scraping machines
GB704889A Improvements in or relating to shuttering for casting concrete structures
GB700175A Improvements in or relating to shuttering for casting concrete
GB681827A Improvements in or relating to shuttering for casting concrete structures
GB728356A An improved method and apparatus for repairing road surfaces
GB712477A An improved method and apparatus for repairing road surfaces