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HARRY RALPH RICARDO

Overview
  • Total Patents
    263
About

HARRY RALPH RICARDO has a total of 263 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United Kingdom, Germany and France. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are KENNETH IRWIN CROSSLEY, LAMPARD ROBERT DOUGLAS and TARTRAIS EUGENE HENRI.

Patent filings in countries

World map showing HARRY RALPH RICARDOs patent filings in countries
# Country Total Patents
#1 United Kingdom 159
#2 Germany 46
#3 France 35
#4 Canada 8
#5 United States 6
#6 Belgium 5
#7 Netherlands 3
#8 Switzerland 1

Patent filings per year

Chart showing HARRY RALPH RICARDOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ricardo Harry Ralph 37
#2 Alcock John Forster 6
#3 Ralph Ricardo Harry 6
#4 Ricardo 5
#5 Forster Alcock John 2
#6 Hetherington Henry Anstruther 2
#7 Holt George Allen 2
#8 Millington Brian Wyatt 1
#9 Allen Holt George 1
#10 Richard Watts 1

Latest patents

Publication Filing date Title
GB1090131A Improvements in or relating to power units
GB668911A Improvements in or relating to sleeve valve internal combustion engines
GB678736A Improvements in or relating to storage apparatus for hot gas
GB676473A Improvements in or relating to combustion chambers
GB685702A Improvements in or relating to heat exchangers
GB672230A Improvements in or relating to differential transmission gearing
GB652085A Improvements in or relating to reciprocating internal combustion engines having decompressing mechanism
GB634627A Improvements in or relating to regenerators
GB639756A Improvements in or relating to internal combustion engines operating on the two-stroke cycle with compression ignition
US2503651A Heat exchanger
US2520430A Needle valve
GB628226A Improvements in or relating to power plants including an internal combustion engine of the liquid-fuel-injection compression ignition type
US2523699A Piston
GB624995A Improvements in and relating to the starting apparatus of internal combustion engines
GB627361A Improvements in or relating to power plants including an internal combustion engine and means for supplying it with compressed air
GB624810A Improvements in or relating to internal combustion engines operating on the four-stroke cycle with compression ignition
GB625947A Improvements in or relating to the fuel injection in compression-ignition internal combustion engines
GB625946A Improvements in or relating to fuel injection into compression ignition internal combustion engines
GB625948A Improvements in or relating to fuel injection in compression ignition internal combustion engines
US2469758A Heat exchanger