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WHITWORTH & CO

Overview
  • Total Patents
    217
About

WHITWORTH & CO has a total of 217 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and weapons are CURTIL REMI, KRISTANI FILIP and MOTODAN LTD.

Patent filings in countries

World map showing WHITWORTH & COs patent filings in countries
# Country Total Patents
#1 United Kingdom 121
#2 United States 23
#3 France 20
#4 Austria 12
#5 Germany 11
#6 Switzerland 10
#7 Denmark 8
#8 Sweden 3
#9 Canada 2
#10 Spain 2
#11 Netherlands 2
#12 Belgium 1
#13 India 1
#14 Italy 1

Patent filings per year

Chart showing WHITWORTH & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tryhorn Donald Wilfred 8
#2 Limited Sir W G Armstrong Whit 6
#3 Smith James John Stewart 6
#4 Dalby William Ernest 4
#5 Donald Wilfred Tryhorn 4
#6 Wilfred Tryhorn Donald 4
#7 Wilson John Sigismund 4
#8 Sodeau William Horace 4
#9 Tryhorn D W 3
#10 Stewart Smith James John 3

Latest patents

Publication Filing date Title
DE3505160A1 CAPSULE COMPRESSOR FOR COMBUSTION ENGINES
US4466388A Compression ignition internal combustion engine
DE2545668A1 COMBUSTION ENGINE WITH COMPRESSION IGNITION
DE1576222A1 Charging system for multi-cylinder two-stroke internal combustion engine to be charged with self-ignition
GB1144025A Improved two-stroke cycle internal combustion engine
GB1082053A Improvements in or relating to supercharged internal combustion engines of the compression ignition type
GB1037347A Improvements in or relating to turbocharged two stroke cycle internal combustion engines of the compression ignition type
DE1172899B Exhaust pipe system between an exhaust gas turbine and a reciprocating internal combustion engine
US3064417A Exhaust systems for gas producing units
GB880380A Improvements in or relating to internal combustion engines
US2827027A Multi-cylinder two-stroke cycle internal combustion engines
GB815060A Improvements in and relating to multi-cylinder two-stroke cycle internal combustion engines
GB750441A Improved internal combustion engines
GB749864A Improvements in or relating to the balancing and charging of internal combustion engines
US2641236A Means for actuating valves and other reciprocating parts
US2650472A Resonating combustion power gas generator
GB613842A Improvements in or relating to the scavenging and exhaust systems of two-stroke internal combustion engines
GB653491A Improved means for actuating valves
GB578468A Improvements in engine valve gear
GB653490A Generators of combustion products