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HAGER & ELSAESSER

Overview
  • Total Patents
    134
About

HAGER & ELSAESSER has a total of 134 patent applications. Its first patent ever was published in 1961. It filed its patents most often in Germany, Austria and Switzerland. Its main competitors in its focus markets chemical engineering, environmental technology and machines are ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH CO LTD, HANGZHOU CHUHUAN SCIENCE AND TECH CO LTD and NIEUWENHUIS GARMT J.

Patent filings per year

Chart showing HAGER & ELSAESSERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marquardt Kurt 48
#2 Kurt Marquardt 6
#3 Nagel Rolf 4
#4 Kuruto Marukubuaruto 4
#5 Hager Willy 4
#6 Nagel Rolf Dipl Ing 4
#7 Marquart Kurt 3
#8 Markvart Kurt 2
#9 Buchholz Reinhard 2
#10 Marwuardt Kurt 2

Latest patents

Publication Filing date Title
DE102005031964A1 Process for the preparation of brewing water and apparatus for carrying out this
DE19745297A1 Method and device for treating water by reverse osmosis or nanofiltration
DE19527295C1 Process for biological purification of waste water
DE4445897C1 De-nitrification process passes water through weak cation exchanger
DE4445896C1 De-nitrification of water
DE4204603A1 Device for the multi-stage, catalytic combustion of nitrogenous gases
DE4016000A1 Device for the treatment of metal-containing liquids by ion exchange and simultaneous or periodic regeneration of the ion exchange resin by electrodialysis
DE3447416A1 SINK COLUMN
DE3425820A1 Process for treating aqueous solutions
DE3243817A1 Process for producing aseptic pure water
DE3124451A1 Process for separating off finely distributed and/or dissolved substances and/or particles from liquids, in particular water, and apparatus for carrying out the process
DE3105550A1 METHOD FOR THE MULTIPLE STAGE OF WATERWATER, BRACKWATER, SEAWATER AND WASTEWATER TREATMENT WITH ENERGY AND RESUME RECOVERY AND DISPOSAL
DE2914145A1 METHOD FOR REDUCING THE WATER WATER DEMAND AND WASTE WATER EMISSION OF THERMAL POWER PLANTS
JPS5452856A Device of thermally regenerating matter in water treatment device and method of operating its device
DE2738120A1 DEVICE AND METHOD FOR THERMALLY REGENERATING MEASURES IN WATER TREATMENT PLANTS
IT1074513B Solidifying contaminants in waste waters - by concn., mixing with fillers and/or binders and aggregates and heat hardening
JPS5342440A Solidification of suspended or solubulized * occasinally harmful substance from waste water
DE2606586A1 PROCESS FOR THE RECOVERY OF MATERIALS BY MEANS OF MEMBRANE SEPARATION
DE2553416A1 Sepn. of dissolved substances from solns. - by raising the soln. temp. before concentration and cooling
DE2541139A1 Solidifying contaminants in waste waters - by concn., mixing with fillers and/or binders and aggregates and heat hardening