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GREENAWALT JOHN E

Overview
  • Total Patents
    53
About

GREENAWALT JOHN E has a total of 53 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States and Canada. Its main competitors in its focus markets thermal processes, materials and metallurgy and environmental technology are JOHN ECKERT GREENAWALT, WEDGE UTLEY and MORGANITE THERMAL DESIGNS LTD.

Patent filings in countries

World map showing GREENAWALT JOHN Es patent filings in countries
# Country Total Patents
#1 United States 47
#2 Canada 6

Patent filings per year

Chart showing GREENAWALT JOHN Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Greenawalt John E 53
#2 Robinson William 1

Latest patents

Publication Filing date Title
US2717825A Apparatus for conversion of sodium sulphide to sodium sulphite
US2642336A Conversion of sodium sulfide to sodium sulfite
US2673787A Method and apparatus for recovering chemical products from waste materials
US2363666A Steelmaking
US2261995A Method of burning black liquor
US2191911A Method of sintering
US2191712A Furnace for burning fuel consisting of combustible and incombustible materials
US2112887A Method of igniting a sintering charge
US2184861A Fuel burner and method of fuel combustion
US2112886A Screening device
US2112888A Burner
US2032412A Incinerating furnace
US2060067A Incinerating furnace
US2072587A Burner
US2097153A Down draft furnace
US1982803A Process and furnace for disposing of refuse matter
US1895159A Method of disposing of sewage sludge
US2005082A Incinerator furnace
US1918535A Method of disposing of refuse matter
US1935876A Charge car for feeding material to be sintered