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RICARDO HARRY RALPH

Overview
  • Total Patents
    234
About

RICARDO HARRY RALPH has a total of 234 patent applications. Its first patent ever was published in 1906. It filed its patents most often in Canada, Switzerland and Denmark. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are KENNETH IRWIN CROSSLEY, HANS LIST DR TECHN and BLASER RICHARD FLORENCIO.

Patent filings in countries

World map showing RICARDO HARRY RALPHs patent filings in countries
# Country Total Patents
#1 Canada 56
#2 Switzerland 51
#3 Denmark 48
#4 United Kingdom 39
#5 Spain 21
#6 United States 12
#7 Austria 7

Patent filings per year

Chart showing RICARDO HARRY RALPHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ricardo Harry Ralph 162
#2 Harry Ralph Ricardo 48
#3 Hetherington Henry Anstruther 5
#4 Harry-Ralph Ricardo 3
#5 Chorlton Alan Ernest Leofric 2
#6 George Allen Holt 1
#7 Evans Thomas 1
#8 Aubrey Thomas Evans 1

Latest patents

Publication Filing date Title
ES149548A1 Improvements related to quick engines of internal combustion, working in a two-stroke cycle and with compression starting
ES149509A1 Improvements related to the control of internal combustion engines working in two-stroke cycle and with compression starting
ES147763A1 Improvements in internal combustion engines, working in two-stroke cycle, with liquid fuel injection.
ES147277A1 Improvements in two-stroke internal combustion engines, or improvements related to them.
ES147244A1 Improvements in two-stroke internal combustion engines.
ES147245A1 Improvements in two-stroke internal combustion engines.
ES147204A1 Improvements in two-stroke internal combustion engines operating with compression ignition, or improvements concerning them.
ES113355A1 Improvements in the mounts of motors and other rotary motive machines.
ES112485A1 Improvements in all internal combustion engines, of the compression ignition type.
ES110596A1 Improvements in the devices to control the running of internal combustion engines of the type fed by injection of liquid fuel.
ES110432A1 Improvements in Compound internal combustion engines.
ES108770A1 Improvements in reciprocating poly-cylinder engines.
ES108627A1 Improvements in internal combustion engines.
ES108628A1 Improvements in internal combustion engines with sleeve valve.
ES108055A1 Improvements in crankshafts.
ES106649A1 Improvements in the pumps for fuel injection in internal combustion engines.
US1301972A Apparatus for regulating the speed and power of internal-combustion engines.
GB136250A Improvements in Fuel Admission Devices for Internal Combustion Engines.
GB131385A Improvements in or relating to Cylinders for Internal Combustion Engines.
US1294833A Piston for internal-combustion engines.