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.
# | 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 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Environmental technology |
# | 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 |
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 |