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PASSAVANT WERKE

Overview
  • Total Patents
    1,747
About

PASSAVANT WERKE has a total of 1,747 patent applications. Its first patent ever was published in 1935. It filed its patents most often in Germany, France and Switzerland. Its main competitors in its focus markets chemical engineering, environmental technology and civil engineering are JONES & ATTWOOD LTD, CONTECH STORMWATER SOLUTIONS I and CYRIL JOHN HARTLEY.

Patent filings per year

Chart showing PASSAVANT WERKEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Klesper Hugo 92
#2 Weiler Walter 75
#3 Busse Oswald 49
#4 Weiler Walter Dipl Ing 42
#5 Diefenbach Guenter 30
#6 Busse Oswald Dr Ing 28
#7 Seel Karl 27
#8 Auler Herbert 27
#9 Fuchs Alfred Dipl Ing 22
#10 Skocic Ante 22

Latest patents

Publication Filing date Title
WO9949992A1 Vibration compression system for compressing molding materials in molding boxes by using two unbalanced bodies
DE19832959A1 Mud trap separator
WO9841303A1 Separator and separation method for separating organic lightweight materials from waste water
DE19732789A1 Floating aerator having spray protection hood covering inlet and outlet
DE19718502A1 Sludge dewatering facility
EP0775782A1 Cover, more specifically for underground basins or reservoirs
PL315448A1 Apparatus for scooping surface scum from round or annular settling and thickening tanks
PL315447A1 Apparatus for scooping surface scum
CZ212896A3 Apparatus for removing floating sludge from round or annular settling and thickening tank
CZ212996A3 Equipment for removing floating sludge
DE19613349A1 Waste water aeration unit consoles secured to facing flat concrete walls
EP0732307A2 A reinforced concrete bridge for waste water treatment basins or ditches
PL312860A1 Solid matter separator for liquid wastes containing floating and precipitating particles
CZ44996A3 Building object for waste water multi-stage bio-aeration
DE19605422A1 Process for the preparation of drinking water for consumption
DE19601790A1 Aeration device for waste water
PL312368A1 Method of conditioning soft water in order obtain drinking water
CZ8796A3 Separating device for waste water containing floating and settling substances
EP0720861A1 Separating plant for waste water loaded with deposit and floating material
EP0720860A1 Separator for light liquids dispersed in waste water