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ERNST JUSTUS KOHLMEYER DR ING

Overview
  • Total Patents
    21
About

ERNST JUSTUS KOHLMEYER DR ING has a total of 21 patent applications. Its first patent ever was published in 1928. It filed its patents most often in Germany. Its main competitors in its focus markets materials and metallurgy, electrical machinery and energy and basic materials chemistry are SAMANCOR LTD, JIANGSU PROVINCE METALLURGICAL DESIGN INST CO LTD and HENRI HERRENSCHMIDT.

Patent filings in countries

World map showing ERNST JUSTUS KOHLMEYER DR INGs patent filings in countries
# Country Total Patents
#1 Germany 21

Patent filings per year

Chart showing ERNST JUSTUS KOHLMEYER DR INGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Retzlaff Dr-Ing Hans Wilhelm 1
#2 Kohlmeyer Dr-Ing Ernst Justus 1

Latest patents

Publication Filing date Title
DE744121C Process for improving the properties of pure aluminum
DE685106C Method for determining the fatigue strength of materials
DE636836C Electric resistance furnace with a cylindrical boiler room
DE604852C Process for the operation of ovens, furnaces and sintering devices according to the principle of intermittent combustion
DE581334C Process for the direct extraction of iron and steel
DE534984C Volatilization of silicon from raw materials containing silica