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WALTHER & CIE AG

Overview
  • Total Patents
    654
About

WALTHER & CIE AG has a total of 654 patent applications. Its first patent ever was published in 1909. It filed its patents most often in Germany, France and United Kingdom. Its main competitors in its focus markets thermal processes, chemical engineering and civil engineering are STEINMUELLER GMBH L & C, FORSTER WHEELER ENERGY CORP and HENAN HIGH POWER SPECIAL ELECTROMECHANICAL MFT CO LTD.

Patent filings in countries

World map showing WALTHER & CIE AGs patent filings in countries

Patent filings per year

Chart showing WALTHER & CIE AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Birkner Max 26
#2 Landsberg Ernst 25
#3 Recker Bernhard 19
#4 Cie Aktiengesellschaft Walther 18
#5 Bechthold Horst Dr Ing 11
#6 Friedhoff Helmut 11
#7 Frank Werner 10
#8 Ernst Landsberg 8
#9 Burkhardt Rudolf 8
#10 Halm Eugen 7

Latest patents

Publication Filing date Title
DE19531101C1 Drying plant control system esp. suitable for treatment of sewage sludge
US5387406A Method and device for the adsorption and chemisorption, respectively, of gaseous components in a gas stream
DE4220143A1 Electrically-heated dryer and cooler for granular materials and sludges - has heated rotors attached to rotating shaft in contact with material being dried and are divided into zones each operated at a different temperature
DE4220159A1 Dust filter hoses surrounded by gas cavities - sized to prevent formation of condensation and associated heat energy requirement
DE4129608A1 Sludge dryer shell control - has indirect dryer with simulated feed action on a fault to maintain action of condenser and boiler
DE4115354A1 Method and device for the adsorption or chemisorption of gaseous components from a gas stream
DE4029395A1 Gas-solids fluidised contactor unit - has solids sepn. and controlled solids recycle comprising multiple compartmented bag filter units
DE3815683A1 Method of drying alpha -hemihydrate
DE3811929A1 HOLDING DEVICE FOR FILTER HOSES
DE3806862A1 Process for the adsorption or chemisorption of gaseous constituents from a gas stream
DE3801913A1 Process and apparatus for the adsorption or chemisorption of gaseous constituents from a gas stream
DE3628452A1 Electrostatic dust separator
DE3625547A1 ELECTROSTATIC DUST SEPARATOR
DE3623170A1 Process for removing acidic components and nitrogen oxides from exhaust gases
DE3623168A1 METHOD FOR REMOVING NITROGEN OXIDS FROM EXHAUST GASES
DE3618020A1 DUST GAS FILTER
DE3531416A1 Gas scrubber
ZA8506265B Level monitoring system
DE3513544A1 METHOD FOR DEPOSITING NITROGEN OXIDES
DE3438400A1 Gas scrubber