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DYCKERHOFF PORTLAND ZEMENTWERK

Overview
  • Total Patents
    38
About

DYCKERHOFF PORTLAND ZEMENTWERK has a total of 38 patent applications. Its first patent ever was published in 1938. It filed its patents most often in France, Germany and Switzerland. Its main competitors in its focus markets materials and metallurgy and environmental technology are BASIC REFRACTORIES, ALTERRA A G and MIFALEI YAM HAMELAH B M.

Patent filings in countries

World map showing DYCKERHOFF PORTLAND ZEMENTWERKs patent filings in countries
# Country Total Patents
#1 France 11
#2 Germany 7
#3 Switzerland 4
#4 Denmark 4
#5 Austria 3
#6 United Kingdom 3
#7 Greece 3
#8 Canada 1
#9 Spain 1
#10 Ireland 1

Patent filings per year

Chart showing DYCKERHOFF PORTLAND ZEMENTWERKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dyckerhoff Dr Walter 4
#2 Portland-Zementwerke Ag Dycker 2
#3 Wittekindt Dr Wilhelm 2
#4 Russ Alfred 1
#5 Strassen Dr Heinrich Zur 1
#6 Seailles Dr Jean Charles 1
#7 Pajenkamp Dr Horst 1
#8 Dyckerhoff Walter 1
#9 Wittekindt Wilhelm 1
#10 Pajenkamp Horst Dr 1

Latest patents

Publication Filing date Title
GB814836A Process for the production of white cement
DE1009553B Process for the production of white cement
DE1036745B Process for the production of white cement
IE21920L Portland cement clinker
GB788869A Process for the manufacture of white portland cement clinker
DE1025316B Process for the production of a white Portland cement clinker
DE852671C Production of a hydraulic binder
DE736310C Hydraulic surcharge
DE715986C Process for the production of calcium aluminate cement
DE746439C Process for the production of a high-quality cement similar to the Ferrari cement
GB509892A Process for the production of pure alumina
CA600287A Process for producing white cement