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NAPIER & SON LTD

Overview
  • Total Patents
    1,466
About

NAPIER & SON LTD has a total of 1,466 patent applications. Its first patent ever was published in 1909. It filed its patents most often in United Kingdom, France and Canada. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and environmental technology are MOTOREN TURBINEN UNION, ROBERT POUIT and ARMSTRONG SIDDELEY MOTORS LTD.

Patent filings in countries

World map showing NAPIER & SON LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 494
#2 France 265
#3 Canada 251
#4 United States 228
#5 Germany 117
#6 Switzerland 86
#7 Denmark 15
#8 Belgium 9
#9 Sweden 1

Patent filings per year

Chart showing NAPIER & SON LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Skellern John 33
#2 Chamberlin Reginald Henry Doug 32
#3 Barlow Benjamin William 25
#4 Gilbert Ronald Albert 20
#5 Halford Frank Bernard 18
#6 Chamberlin Reginald H D 18
#7 Douglas Chamberlin Reginald He 18
#8 Murray George Hamilton 17
#9 Ramsay Frank Raymond Faber 16
#10 John Skellern 16

Latest patents

Publication Filing date Title
DE1815842A1 Rotary machine
GB1187711A Improvements in Turbines and Compressors
GB1175737A Improvements in Internal Combustion Engine Superchargers
GB1174660A Improvements in Bearings for High-Speed Machines
FR1373926A Electrical insulator
DE1272737B De-icing device control, especially for helicopter rotors
US3183975A De-icing
GB1087072A Indicating instrument illumination
GB1030243A Means for detecting a fault on an electrical supply system
GB1083311A Indicators
GB1059733A Electrical resistance heater
GB1032681A Ice protection systems for aerofoil surfaces
US3099385A Turbo blowers
US3134037A Motor with hydrodynamic supported rotor
GB987941A Boron containing resins
GB925482A Fuel supply apparatus for internal combustion engines
GB925483A Fuel supply apparatus for gas turbine engines
GB909218A Corrosion protection in water systems
GB910117A Pad-type thrust bearings
GB911748A Transmission gearing including means for measuring torque