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KELMAR JOHN J

Overview
  • Total Patents
    12
About

KELMAR JOHN J has a total of 12 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets basic materials chemistry, environmental technology and materials and metallurgy are KOMMUNARSK GORNO METALL IVNI P, IZSLEDOVATELSKI TSENTAR TEKOM and SU YAJIE.

Patent filings in countries

World map showing KELMAR JOHN Js patent filings in countries
# Country Total Patents
#1 United States 8
#2 Germany 3
#3 Canada 1

Patent filings per year

Chart showing KELMAR JOHN Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kelmar John J 11
#2 J Kelmar John 1

Latest patents

Publication Filing date Title
US4978106A Iron reduction apparatus
US4670049A Oxygen blast furnace for direct steel making
US4249996A Electrically heated by-product coke oven
US3861367A Non-polluting internal combustion engine system
DE2209075A1 Coal carbonization plant - with coke desulfurizing reactor through which cleaned coke oven gas is circulated
US3661719A Non-polluting by-product coal carbonization plant
US3628332A Nonpolluting constant output electric power plant
DE1916717A1 Blast furnace operation
US3460934A Blast furnace method
US3332884A Disposal of radioactive waste using coal waste slag
CA863257A Blast furnace system