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KARL FRIEDRICH

Overview
  • Total Patents
    22
About

KARL FRIEDRICH has a total of 22 patent applications. Its first patent ever was published in 1916. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets materials and metallurgy, consumer goods and environmental technology are HYCRETE TECHNOLOGIES LLC, OMORI MAMORU and SKELETON TECHNOLOGIES AG.

Patent filings in countries

World map showing KARL FRIEDRICHs patent filings in countries
# Country Total Patents
#1 Germany 12
#2 United Kingdom 5
#3 United States 4
#4 France 1

Patent filings per year

Chart showing KARL FRIEDRICHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Karl Friedrich 5
#2 Friedrich Karl 2
#3 Curt Friedrich 1

Latest patents

Publication Filing date Title
DE3309667A1 Holder for roof-rack, ski stand or similar stand
US2212470A Fire extinguishing compound
GB489015A Improvements in or relating to glazing materials
GB309755A Producing articles with a glaze-like covering
US1850099A Process of producing articles covered by cold process with alpha glaze-like coating
DE501842C Process to provide objects with a glaze-like layer in a cold way
US1636860A Method for the production of alpha cold glaze upon building material, such as concrete, sandstone, clay, brickwork, and the like
GB190267A Improvements in a method for the production of a cold glaze upon building material, such as concrete, sandstone, clay, brickwork and the like
GB152651A Process for the production by the cold way of glaze-like mineral coatings for iron
GB154236A A method of producing a cold glaze on building materials, in particular cement
US1402412A Method of producing a cold glaze for building materials, in particular cement