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RICARDO & CO ENGINEERS

Overview
  • Total Patents
    255
About

RICARDO & CO ENGINEERS has a total of 255 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United Kingdom, France and Germany. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and thermal processes are MOTOREN WERKE MANNHEIM AG, CUNEWALDE MOTOREN and MELCHIOR JEAN.

Patent filings in countries

World map showing RICARDO & CO ENGINEERSs patent filings in countries
# Country Total Patents
#1 United Kingdom 60
#2 France 46
#3 Germany 38
#4 United States 38
#5 Spain 17
#6 Japan 12
#7 Greece 11
#8 Denmark 10
#9 Sweden 7
#10 Belgium 6
#11 Italy 4
#12 Switzerland 2
#13 Netherlands 2
#14 Austria 1
#15 Finland 1

Patent filings per year

Chart showing RICARDO & CO ENGINEERSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ricardo Harry Ralph 14
#2 Holt George Allen 12
#3 Allen Holt George 9
#4 Ralph Ricardo Harry 8
#5 Alcock John Forster 8
#6 Millington Brian Wyatt 7
#7 Freese Royston Gordon 6
#8 Haslett Robert Alan 5
#9 Scott William Murray 5
#10 Forster Alcock John 5

Latest patents

Publication Filing date Title
JPS5813116A Internal combustion engine with exhaust gas filter device
JPS55132948A Apparatus for and method of measuring concentration of airrfuel mixture
JPS5465212A Device of adjusting clearance of hydraulic pressure working valve for compression ignition internal combustion engine
DE2834993A1 FLOW METER
ES470454A1 Method of flow rate measurement and flowmeter
ES470175A1 Control of i.c. engines
US4121455A Measuring a flow of gas through a combustion engine
JPS51146027A Automobile
ES443614A1 Two-stroke I.C. engines
DE2445444A1 Automatic continuous exhaust gas analysis - using dilution with oxygen rich gas and subsequent catalytic combustion
GB1469106A Ic engines
DE2326951A1 ROTATING PHASE SHIFTER BETWEEN TWO SHAFTS
DE2221804A1 Multi-cylinder piston machine
GB1355820A Piston cooling and or small-end bearing lubrication arrangement for ic engines
GB1315442A Tachometers
GB1356565A Limitting exhaust smoke emission from i c engines
GB1276718A Improvements relating to analysis of strain in loaded components
US3627208A Fuel injection apparatus for internal combustion engines of the liquid-fuelinjection compression-ignition type
DE1950144A1 Fuel injection system
GB1322495A Exhaust passages in internal combustion engines