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WALETZKO ALFRED APPARATEBAU

Overview
  • Total Patents
    21
About

WALETZKO ALFRED APPARATEBAU has a total of 21 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Germany, Netherlands and Switzerland. Its main competitors in its focus markets civil engineering, mechanical elements and environmental technology are KNAPP FRANCESCO, CASPRO SA and LEON BLOCH.

Patent filings in countries

World map showing WALETZKO ALFRED APPARATEBAUs patent filings in countries
# Country Total Patents
#1 Germany 13
#2 Netherlands 4
#3 Switzerland 2
#4 Austria 1
#5 France 1

Patent filings per year

Chart showing WALETZKO ALFRED APPARATEBAUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Waletzko Alfred 14
#2 Alfred Waletzko Apparatebau Ge 1

Latest patents

Publication Filing date Title
DE3000430A1 DRINKING WATER FLOW ARMATURE WITH FLOW MONITOR
DE2849825A1 Drinking water supply duct valve flow monitor - is in narrow by=pass duct, and main duct has return flow check
DE2806310A1 Drinking water pipe reverse flow protection equipment - has pressure control valve opening unloader pipe before separator unit
DE2801019A1 Drinking water protection supply pipe divider - has valve opening load release duct at low pressure, with spring and piston
DE2747941A1 Prevention of waste backflow into drinking water duct - using hydraulically linked pressure control valve to interrupt or release supply
DE2739801A1 BACKFLOW PREVENTORS, IN PARTICULAR FOR PIPE CUTTERS
DE2650934A1 Back flow preventer between drinking and washing water pipework - has guide rings fitted between valve and guide rod
DE2650933A1 FLOW FITTING, IN PARTICULAR FOR PIPE SEPARATOR IN DRINKING WATER PIPES
DE2418035A1 Pipe insulator for water piping - has guide rings comprising slit plastic slide rings located in annular grooves of pipe guide cylinder
DE2309414A1 Tap water additive metering device - based on water jet injection principle, operating by closing venting port
DE2215328A1 DOSING DEVICE FOR ADDING LIQUID DISHWASHER OR DETERGENT
DE2110335A1 Dosing device
DE1907333A1 Dosing device for powdery goods