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WESTFALIA DINNENDAHL GROEPPEL

Overview
  • Total Patents
    350
About

WESTFALIA DINNENDAHL GROEPPEL has a total of 350 patent applications. Its first patent ever was published in 1930. It filed its patents most often in Germany, United Kingdom and Denmark. Its main competitors in its focus markets chemical engineering, packaging and shipping and machines are WESTFALIA DINNENDAHL, BERTRAM NORTON and PREP IND COMBUSTIBLES.

Patent filings in countries

World map showing WESTFALIA DINNENDAHL GROEPPELs patent filings in countries
# Country Total Patents
#1 Germany 298
#2 United Kingdom 22
#3 Denmark 7
#4 Switzerland 6
#5 Belgium 5
#6 Finland 4
#7 Austria 2
#8 France 2
#9 Norway 2
#10 Sweden 2

Patent filings per year

Chart showing WESTFALIA DINNENDAHL GROEPPELs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Woelz Josef 27
#2 Jaeger Heinz 26
#3 Kaiser Friedrich 17
#4 Ruehl Dipl-Ing Heinz 15
#5 Hanefeld Otto 8
#6 Mayer Friedrich Wilhelm Dr-Ing 7
#7 Bock Paul 6
#8 Jaeger H 6
#9 Boettge Herbert 6
#10 Stolz Karl 5

Latest patents

Publication Filing date Title
DE1937894A1 Tube mill with direct drive
DE1937893A1 Rohrmühle
DE1937895A1 Tube mill drive
DE1934258A1 Device for preheating, calcining or burning fine-grained to dusty material, especially for burning fine lime
DE1931892A1 Circulating air sifter for cooling cement or similar goods
DE1924297A1 Air separator
DE1920095A1 Grinding plant
DE1917320A1 Drum mill
DE1909583A1 Agitator flotation cell for sorting mineral - mixtures
DE1905821A1 Mine gas extraction
DE1903743A1 Circulating air separator
DE1815056A1 End plate for drum mills
DE1814484A1 Rotary kiln refractory lining
DE1809060A1 Procedure for the comparative measurement of heaped bulk material
DE1796128A1 Telescopic filling funnel for coke oven filling wagons
DE1778849A1 Device for drying and preheating of fine-grained material, especially cement raw meal
DE1758173B1 Pre-treatment of raw charcoal
DE1556318A1 Discharge device for slot bunker
GB1114588A Device for drying and pre-heating fine-grain material
DE1266701B Double jig for processing coal or other minerals