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STICKSTOFFDUENGER AG

Overview
  • Total Patents
    144
About

STICKSTOFFDUENGER AG has a total of 144 patent applications. Its first patent ever was published in 1911. It filed its patents most often in Germany, Switzerland and Austria. Its main competitors in its focus markets materials and metallurgy, organic fine chemistry and electrical machinery and energy are FU R STICKSTOFFDU NGER AG, FUR STICKSTOFFDUNGER AG and NIKODEM CARO DR.

Patent filings in countries

World map showing STICKSTOFFDUENGER AGs patent filings in countries
# Country Total Patents
#1 Germany 59
#2 Switzerland 31
#3 Austria 24
#4 United Kingdom 23
#5 France 4
#6 Finland 2
#7 Denmark 1

Patent filings per year

Chart showing STICKSTOFFDUENGER AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fuer Stickstoffduenger Aktien- 22
#2 Winter Dr Ernst 10
#3 Fuer Stickstoffduenger Aktieng 9
#4 Loesch Dr Josef 8
#5 Walter Dr Felix 5
#6 Lueckerath Franz 4
#7 Schloettig Dr Otto 4
#8 Behringer Dr Heinrich 4
#9 Hartmann Dr Fridolin 3
#10 Polack Dr Herbert 3

Latest patents

Publication Filing date Title
GB692583A Process for the removal of dust containing alkaline-earth metal compounds from gases
DE817449C Filler for distillation columns and washing towers
DE822085C Device for the even distribution of liquids in Fuellkoerpersaeulen
DE832176C Electrode holder for electrothermal furnaces
DE827382C Electrode holder for electrothermal furnaces
DE812252C Process for the separation and recovery of hydrated lime dust from the crude acetylene formed during the dry gasification of carbide
DE838432C Automatic quick-closing device for welding torches and cutting torches
DE840608C Bunker level indicator
DE727823C Granulating device for hot melt material at the highest temperatures
DE741221C Grids for Fuellkoerpersäulen
DE760654C Cover for melting furnace
DE709498C Grinding bodies, especially for tubular mills
GB520829A Manufacture of sintered calcium oxide
DE728622C Device for tensioning the lower guide rollers of bucket elevators with a pivotable carrier
GB513642A Improvements in the manufacture of calcium carbide in electric furnaces
DE729391C Three-flame hand welding torch
GB503336A Manufacture of calcium cyamide
DE747517C Process for the production of a sintered lime
GB502812A Improved electric furnace
DE695946C Process for the production of quick lime from carbonaceous hydrated lime