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JOHN FOWLER & CO LEEDS LTD

Overview
  • Total Patents
    41
About

JOHN FOWLER & CO LEEDS LTD has a total of 41 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets engines, pumps and turbines, agriculture and environmental technology are PERKINS F LTD, SCALZO AUTOMOTIVE RES PTY LTD and HERCULES MOTORS CORP.

Patent filings in countries

World map showing JOHN FOWLER & CO LEEDS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 17
#2 United States 11
#3 France 8
#4 Germany 2
#5 Spain 2
#6 Austria 1

Patent filings per year

Chart showing JOHN FOWLER & CO LEEDS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Freeman Sanders Arthur 8
#2 Howard Arthur Clifford 3
#3 Sanders 2
#4 Ben Niekirk Percy 1
#5 Rudolph Hasson Paul 1
#6 Parfitt Paul 1
#7 Sanders Arthur Freeman 1
#8 Dolphin Arthur Rhodes 1
#9 Darwent Ellis Edward 1
#10 Clifford Howard Arthur 1

Latest patents

Publication Filing date Title
GB702850A Improvements in or relating to the manufacture of high permeability and relatively high electrical resistance material
GB711201A Improvements in and relating to friction synchronised positive clutches
GB631408A Improvements in or relating to the suspension of endless track frames on tractors and like vehicles
US2517879A Gear box
US2326888A Control of fuel injection engines
US2348089A Face milling cutter
US2292662A Cylinder bore
GB544298A Improvements in face milling cutters
US2346458A Internal combustion engine combined with a compressor
US2272726A Control of fuel injection engines
US2296192A Combustion chamber
US2195709A Fuel-injection engine
US2096527A Combustion chamber for fuel-injection engines
GB467686A Improvements in and relating to depth maintenance runners for rotary tilling machines
US2089577A Combustion chamber of fuel-injection engines
GB443395A Improvements in or relating to the tilling tools of rotary tilling machines
GB435079A Improvements in or relating to steering mechanism for road rollers having pivotally mounted driving motors
GB441480A Improvements relating to draft couplings with power transmission means
GB428890A Improvements in and relating to hoisting devices for tractors
GB412724A Improvements relating to depth maintenance runners as applied to rotary tilling machines