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RIEDHAMMER LUDWIG

Overview
  • Total Patents
    22
About

RIEDHAMMER LUDWIG has a total of 22 patent applications. Its first patent ever was published in 1925. It filed its patents most often in Germany, France and United Kingdom. Its main competitors in its focus markets thermal processes, materials and metallurgy and electrical machinery and energy are WHITELEY DESMOND, WILSON THOMAS M and SVENSKA METALLVERKENS UGNS AKT.

Patent filings in countries

World map showing RIEDHAMMER LUDWIGs patent filings in countries
# Country Total Patents
#1 Germany 11
#2 France 4
#3 United Kingdom 3
#4 Spain 2
#5 Canada 1
#6 Switzerland 1

Patent filings per year

Chart showing RIEDHAMMER LUDWIGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hautmann Franz 4
#2 Riedhammer Ludwig 2
#3 Hans Riedhammer 1
#4 Ludwig Riedhammer 1
#5 Riedhammer Dipl-Ing Hans 1
#6 Riedhammer Hans 1
#7 Franz Hautmann 1

Latest patents

Publication Filing date Title
DE1142309B Method and furnace for burning carbon bodies such as electrodes, carbon bricks and the like. like
DE895273C Tunnel kiln entrance lock
DE947234C Tunnel furnace for firing ceramic objects, especially porcelain
DE517334C Process for achieving a uniform temperature in the upper and lower parts of the combustion chamber of a gas-fired chamber ring furnace with a flashing flame
DE530993C Electrically heated tunnel kiln with two rows of cars moving in opposite directions
DE492678C Burning electrodes and other artificial coals
DE459950C Process for burning and roasting lumpy goods, such as lime, cement, ore, etc., in shaft ovens
DE611495C Electrically heated tunnel furnace
CA709328A Baking of carbon bodies
DE516858C Tunnel muffle furnace, in which the firing boxes are guided hanging through the muffle
DE542131C Incinerator for the tar fumes contained in the flue gases
DE466191C Shaft furnace for burning and roasting lime, cement, etc.