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STONE J & CO LTD

Overview
  • Total Patents
    937
About

STONE J & CO LTD has a total of 937 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets electrical machinery and energy, transport and environmental technology are NIEHOFF & CO C E, ROZMAN GREGORY I and HUGO GROB.

Patent filings in countries

World map showing STONE J & CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 457
#2 France 156
#3 United States 114
#4 Germany 54
#5 Spain 44
#6 Canada 40
#7 Austria 31
#8 Belgium 16
#9 Denmark 13
#10 Switzerland 5
#11 Iceland 3
#12 Greece 1
#13 India 1
#14 Japan 1
#15 Netherlands 1

Patent filings per year

Chart showing STONE J & CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nixon Leslie Reginald 18
#2 Stamberger Andrew 17
#3 Hobbs Edwin Daniel 14
#4 Chilton Alfred Henry 13
#5 Leigh Bertram Robert 11
#6 Charles Hatcher Ernest 10
#7 Reginald Nixon Leslie 10
#8 Vickery Ernest Clements 9
#9 Parsons William Steel 9
#10 Andrew Stamberger 8

Latest patents

Publication Filing date Title
GB1119850A Improvements relating to the excitation of dynamo-electric generators
GB1120286A Improvements relating to electrical-supply systems on vehicles
GB1115029A Improvements relating to battery-charging installations
GB1110123A Improvements relating to the protection of semi-conductor apparatus
GB1147642A Improvements relating to washing of textile fibres and materials
GB1066098A Improvements relating to battery-charging systems
GB1048741A Improvements relating to dynamo-electric machines
GB992476A An electrical conductor splice
GB1013634A Dead end connections of wire, rod, cable or the like
GB1027353A Improvements relating to electrical inverters
ES283809A1 A provision to control the temperature in a passenger vehicle (Machine-translation by Google Translate, not legally binding)
GB1010925A Improvements relating to feed-back arrangements for air temperature-control systems
GB979969A Improvements relating to battery installations for vehicles or aircraft
US3112655A Driving arrangements for generators
GB975197A Improvements relating to means for controlling the defrosting of refrigerating units
ES274588A1 An electrical current inverter apparatus (Machine-translation by Google Translate, not legally binding)
GB947232A Improvements relating to temperature control for a compartmental vehicle
DE1217993B Device for temperature control for vehicle compartment heating, especially in railroad cars
US3139515A Temperature control for a compartmental vehicle
ES272803A1 A voltage regulator device (Machine-translation by Google Translate, not legally binding)