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DYCKERHOFF ZEMENTWERKE AG

Overview
  • Total Patents
    154
About

DYCKERHOFF ZEMENTWERKE AG has a total of 154 patent applications. Its first patent ever was published in 1956. It filed its patents most often in Germany, France and Switzerland. Its main competitors in its focus markets materials and metallurgy, environmental technology and basic materials chemistry are JIANGSU GAOCHUN CERAM CO LTD, GUANGDONG HONGYU NEW MAT CO LTD and ZHANG SHAOPU.

Patent filings in countries

World map showing DYCKERHOFF ZEMENTWERKE AGs patent filings in countries

Patent filings per year

Chart showing DYCKERHOFF ZEMENTWERKE AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rauschenfels Eberhard 11
#2 Rauschenfels E 7
#3 Rauschenfels Eberhard Dr Ing 7
#4 Striebel Wilhelm Dipl Ing 5
#5 Rauschenfels E Dipl Ing Dr 4
#6 Pruzina Christoph 4
#7 Dosch Werner 3
#8 Strassen Heinrich Zur 3
#9 Striebel Wilhelm 3
#10 Strassen H Z 3

Latest patents

Publication Filing date Title
DE3132632A1 Silo
US4090883A Building material reinforced with fibers of glassy calcium silicate
US4090882A Glassy calcium silicate fibers made from phosphorus slag
CA1073479A Process for stabilizing cement stone formed with aluminous binders
DE2649032B1 Process for the production of alumina cement and its use
FR2327971A1 Additive for powdered lime - comprises a short chain aliphatic carboxylic acid, salt or lactone
DE2624971A1 Economical disposal of industrial wastes - by feeding them in minor proportions into furnaces producing cement, lime, etc.
GB1500070A Manufacture of glass
ATA427075A Use of fibers of glassy structure for armoring inorganically tied building materials
CA1064972A Glassy calcium silicate fibers made from phosphorus slag
US4165991A Method for the production of synthetic wollastonite material
US4047968A Method for the production of synthetic wollastonite materials
US3998650A Expanded synthetic calcium silicates
DE2462413A1 Vitreous calcium silicate fibres contg oxides - made from slag obtd in phosphorus mfr and used to reinforce building materials
CH607986A5 Calcium silicate fibres having a glassy structure which are stable in basic medium
DE2365392A1 Calcium silicate fibres for reinforcing concrete - prepd. from phosphorus slag obtained during the electrothermal preparation of phosphorus
ES407836A1 Expanded synthetic calcium silicates
DE2244299A1 Expanded synthetic calcium silicate - with iniform colouration and no free calcium oxide
CA988676A Method for the production of synthetic wollastonite material
DE2211503A1 Synthetic wollastonite prodn - by removing impurities from phosphor won quenched slag prior to roasting