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HOELTER H

Overview
  • Total Patents
    278
About

HOELTER H has a total of 278 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United Kingdom, Germany and France. Its main competitors in its focus markets chemical engineering, environmental technology and civil engineering are HOELTER HEINZ, HOELTER HEINZ ING GRAD and PLANTEC KK.

Patent filings per year

Chart showing HOELTER Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Holter Heinz 55
#2 Hoelter Heinz 47
#3 Dewert Heribert 30
#4 Igelbuscher Heinrich 29
#5 Gresch Heinrich 24
#6 Haintsu Herutaa 23
#7 Gresch H 22
#8 Holter H 19
#9 Igelbuscher H 14
#10 Gresch Heinz 13

Latest patents

Publication Filing date Title
AU1995501A Dust filter for purifying air
AU9060998A Sealing system for a coke furnace door with double suspension
AU8530898A Ionisation filter for purifying air
BR9811268A Ionization filter for air purification
CN1230133A Process for treating waste gases produced in organic waste incineration plant
SK3193A3 Method of elimination a wastes and a fuel partial produced from a wastes
PL297316A1 Method of and system for extracting ventilation of galleries
AU2924789A Minimising harmful emissions from buildings
PL272357A3 Dust filter for mining
FR2617236A1 DUST FILTER FOR MINE
GB8715522D0 Modular air filter
US4742763A Device for the detection of noxious substances in the air supplied to a compartment occupied by people
AU3885785A Stripping nox and sox from flue gases discharged from combustion plants
US4733605A Process and device for purifying polluted air
FR2543014A1 Process for desulphurising burnt gases downstream of coal-fired power stations
BE895404A Dust filter bag for mining filters
FR2504912A1 MASSES TO BE DESIGNED TO CONSOLIDATE THE FRESHLY HOLLOW FIELD, PREFERABLY FOR MINING GALLERIES
FR2509200A1 Building material for making dams or walls in underground mines - contains large amt. of fly ash obtd. from electrostatic filters in coal burning power stations
ES8300020A1 Procedure and device for the disposal of sulfur dioxide and other combustion gas contaminants
BR8103078A PROCESS AND DEVICE FOR THE DISPOSAL OF Sulfurous Anhydride AND OTHER HARMFUL SUBSTANCES OF SMOKE GAS