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DAVID BROWN TRACTORS ENG LTD

Overview
  • Total Patents
    46
About

DAVID BROWN TRACTORS ENG LTD has a total of 46 patent applications. Its first patent ever was published in 1951. It filed its patents most often in United Kingdom, France and Austria. Its main competitors in its focus markets agriculture, mechanical elements and transport are SAUER DANFOSS APS NORDBORG, CONWAY JOHN P and LEITER AUGUSTIN.

Patent filings in countries

World map showing DAVID BROWN TRACTORS ENG LTDs patent filings in countries

Patent filings per year

Chart showing DAVID BROWN TRACTORS ENG LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Williams Frederick 12
#2 Hull Charles Hartley 11
#3 Charles Hartley Hull 3
#4 Ashfield Herbert Edward 2
#5 Horsfall Harry 2
#6 Frederick Williams 2
#7 Eastwood Tom 2
#8 Hull Charles H 2
#9 Sykes Fred 1
#10 Bowditch Harold Glenn 1

Latest patents

Publication Filing date Title
GB811146A Improvements in or relating to tractor-trailer combinations
GB822604A Improvements in or relating to agricultural mowing machines
GB782701A An improvement in or relating to gear pumps
GB822169A An improvement in or relating to tractor-trailer combinations
GB821134A An improved jacking mechanism for tractors
GB796015A An improvement in or relating to agricultural implements
DE1022826B Mounted disc plow
US2829577A Disc poughs
GB800810A An improved power take off mechanism for motor vehicles
DE1019849B Device for the adjustable attachment and lifting of agricultural equipment on a tractor
US2759408A Tractor implement linkages
US2958384A Tractor-implement combination with weight transfer adjustment
DE1006648B Hydraulic lifting gear for agricultural tractors
IE21112L Improvements in or relating to tractor implement¹combinations
GB771600A An improvement in or relating to means for connecting agricultural implements to tractors
GB767210A An improvement in or relating to means for connecting agricultural implements to tractors
GB755248A An improved adjustable share point for ploughs
GB747980A An improved disc plough
GB747353A New or improved power take off for an i.c. engined vehicle
GB746673A Improved pneumatically operated power lift for agricultural tractors