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DOERRENBERG EDELSTAHL GMBH

Overview
  • Total Patents
    13
About

DOERRENBERG EDELSTAHL GMBH has a total of 13 patent applications. Its first patent ever was published in 1976. It filed its patents most often in Germany and Netherlands. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and civil engineering are SINGER A R E, GENT MATERIALS SURFACE TECH GUANGDONG CO LTD and SEO YEONG CO LTD.

Patent filings in countries

World map showing DOERRENBERG EDELSTAHL GMBHs patent filings in countries
# Country Total Patents
#1 Germany 12
#2 Netherlands 1

Patent filings per year

Chart showing DOERRENBERG EDELSTAHL GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heinz Willi Dipl Ing 3
#2 Piluris Michael 3
#3 Schmidt Dieter 2
#4 Berns Hans 1
#5 Hoeller Rolf 1
#6 Holtermann Heinz Dipl Ing 1
#7 Theisen Werner 1
#8 Oldewurtel Andreas 1
#9 Weber Sebastian 1
#10 Wagener Friedhelm 1

Latest patents

Publication Filing date Title
DE102006032593A1 Method for the production of internal cooling channels having tools
DE4428161C1 Sand mould for casting turbine wheel
DE4214601A1 Soft martensitic stainless steel - includes nitrogen, vanadium@ and niobium to improve strength and toughness by tempering to increasing secondary hardness
DE4202339A1 Corrosion-resistant, highly wear-resistant, hardenable steel
DE3939237A1 Burglar-proof armour-plating with drill-resistant core - has cast stainless steel housing filled with corundum particles, vibrated and heated to temp. of added melt e.g. aluminium
DE3710274C1 Process for producing a composite material
DE3636549A1 Process for slag-free casting of molten metals
DE3610497A1 Casting device
DE3609783A1 Reactor ladle
DE3525446A1 Device for protecting the pouring stream in casting
DE2720773A1 Composite wear resistant hard layer coated steel - is produced by gas plating substrate then annealing in controlled atmosphere and quenching in similar atmosphere or oil
DE2649685A1 Chemical vapour deposition onto substrates such as tool sheet - using two vessels so substrate is kept below gas reaction temp.