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AJAX ELECTROTHERMIC CORP

Overview
  • Total Patents
    138
About

AJAX ELECTROTHERMIC CORP has a total of 138 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States, Finland and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, thermal processes and materials and metallurgy are BALLY JEAN, SAKAGUCHI DENNETSU KABUSHIKI K and KERCHER ARTHUR JEROME.

Patent filings in countries

World map showing AJAX ELECTROTHERMIC CORPs patent filings in countries
# Country Total Patents
#1 United States 96
#2 Finland 10
#3 United Kingdom 10
#4 Canada 9
#5 France 6
#6 Germany 3
#7 Switzerland 2
#8 Austria 1
#9 Spain 1

Patent filings per year

Chart showing AJAX ELECTROTHERMIC CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fitch Northrup Edwin 56
#2 Northrup Edwin F 11
#3 Kennedy Theodore R 10
#4 Northrup Edwin Fitch 6
#5 Franz Linnhoff 4
#6 Clamer Guilliam H 3
#7 Chesnut Frank T 3
#8 Dudley Willcox 3
#9 Arthur Feehan Thomas 2
#10 Kennedy Theodore Roosevelt 2

Latest patents

Publication Filing date Title
US2755326A Induction furnace
US2832916A Ground detector
US2781487A Voltage regulating system
US2676235A Control means for induction furnaces
GB603390A Improvements in or relating to heating by electromagnetic induction
US2452197A Induction furnace for variable heat patterns
GB584271A Improvements in or relating to electric induction furnaces
US2289484A Casting apparatus
GB551715A Improvements in electric arc discharge apparatus
US2286024A Coreless induction furnace for melting metals
US2265430A Discharge gap
US2223507A Induction heating method
US2181899A Transformer
GB522456A Improvements in or relating to transformers
US2144378A Induction heater
US2151035A Transformer
US2144377A Induction heater
US1997741A Muffle inductor electric furnace
US1997988A Furnace lining protection
US2006731A Discharge gap