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KELLER OFENBAU GMBH

Overview
  • Total Patents
    109
About

KELLER OFENBAU GMBH has a total of 109 patent applications. Its first patent ever was published in 1961. It filed its patents most often in Germany, United States and Austria. Its main competitors in its focus markets thermal processes, chemical engineering and materials and metallurgy are AMERICAN DRESSLER TUNNEL KILNS, Envirosteel Inc and FURNANCE JUKO KK.

Patent filings in countries

World map showing KELLER OFENBAU GMBHs patent filings in countries

Patent filings per year

Chart showing KELLER OFENBAU GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Buschermoehle Gregor 35
#2 Woyczeck Guenter Ing Grad 5
#3 Buecker Franz 5
#4 Huthmann Erich 5
#5 Spitzbart Herbert 4
#6 Dierkes Antonius 4
#7 Schmidt Manfred 3
#8 Lindemann Helmut Dipl Ing 3
#9 H Brindlinger Otto 3
#10 Buschermohle Gregor 3

Latest patents

Publication Filing date Title
DE3821589A1 Kiln car for a tunnel kiln in the ceramic industry
DE3723492C1 Process and tunnel furnace (kiln) for producing reduced roof tiles
DE3717356C1 Tunnel furnace for baking shaped ceramic products
DE3708970C1 Smoke gas line for carrying off the smoke gases produced in a pivotably mounted furnace
DE3640058C1 Apparatus for producing reduced ceramic products, in particular roof tiles, in a tunnel kiln (furnace)
DE3624881C1 Kiln for baking green ceramic products
DE3617458A1 Kiln shuttle
DE3513820C1 Gas lance
DE3501627A1 Process and device for firing partially reduced brickworks products in a tunnel kiln
DE3442512C1 Method for maintaining poke-hole spacings in a ceiling of tunnel furnaces in the ceramic industry, and support stone
DE3420147C1 Lock on a tunnel furnace for baking ceramic products
DE3401507C1 Stokehole in the ceiling and wall region of a ceramics kiln
DE3400657C1 Apparatus for the production of blocks of fibre mats consisting of ceramic fibres
DE3316555C1 Stirrup-shaped suspension of a suspension brick of a suspended roof of a ceramics kiln
DE3315729C1 Building block for the production of a fireproof wall for combustion chambers of industrial furnaces
DE3305540A1 Process and device for firing ceramic products with heavy oil in a tunnel furnace
DE3038701A1 Industrial furnace wall refractory brick - has walls joined by two ribs one quarter way along from ends
DE3031474A1 Ceramic tunnel furnace conveyor track - has plummer blocks each accommodating several roller shafts fitting in support notches
DE3030714A1 Prefabricated and prestressed wall element - for combustion chamber of kiln used for baking ceramic mouldings
DE3017434A1 Heating of tunnel kilns in ceramic industry - by lean gas obtd. by partial combustion of solid fuel in gas generator, and by recycling furnace exhaust gases