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SUEDWESTFALEN AG STAHLWERKE

Overview
  • Total Patents
    265
About

SUEDWESTFALEN AG STAHLWERKE has a total of 265 patent applications. Its first patent ever was published in 1948. It filed its patents most often in Germany, France and Austria. Its main competitors in its focus markets materials and metallurgy, machine tools and thermal processes are ZAL TSGITTER FLAKHSHTAL GMBKH, SHANDONG IRON & STEEL CO LTD and POSCO.

Patent filings in countries

World map showing SUEDWESTFALEN AG STAHLWERKEs patent filings in countries

Patent filings per year

Chart showing SUEDWESTFALEN AG STAHLWERKEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Randak Alfred 9
#2 Randak A 8
#3 Eberbach Dipl-Ing Reinhold 8
#4 Behr Eduard 7
#5 Treppschuh Helmut 5
#6 Rinker Heinz 5
#7 Friedrich-Wilhelm Trautes Dipl 5
#8 Guenther Eich Dipl-Ing 5
#9 Lentzen Hans 5
#10 Michel K 4

Latest patents

Publication Filing date Title
DE2941160A1 Balloon limiter for spinning and doubling frames - is made of stainless steel and is produced by extrusion pressing
DE2924791B1 Method and device for determining the levels of heavy metal oxides in liquid slags
DE2819567A1 ROLLING MILL FOR ROLLING BAR-SHAPED METALLIC GOODS
DE2644039B1 Ferritic austenitic article resisting intercrystalline corrosion - contg. unstabilised alloy welded with ferritic austenitic alloy of different compsn.
DE2514079A1 Current supply device for slag remelted block - comprises conducting non-fusible base plate and fusible intermediate element
DE2403335A1 Drive for electrode holder in arc furnace - has control device with safety device against electrode breaking
DE2347078A1 Chrome-nickel-molybdenum nitrogen steel - for non-heat treated welded joints
DE2333466A1 Alloy steel prodn. - blowing refining gas onto melt at inclined angle
DE2327965A1 Processing spent metal etching and passivating baths - by neutralising and work up, without causing environmental pollution
FR2186300A1 Hot rolling mill - for semifinished and bar material
GB1413595A Production of alloy steels
DE2255673A1 Chrome-nickel-molybdenum nitrogen steel - for non-heat treated welded joints
GB1361563A Steel
GB1333876A Steel
FR2078143A5 Steel treatment - by faster controlled cooling, quenching and annealing schedules
GB1325899A Martensitic stainless steel
CA946268A Method for producing improved martensitic chromium steel
DE2048042A1 Metal strip - hot rolled and coiled with enclosed combustible separators for heat-treatment gas access
DE2041491A1 Process for submerged arc welding of cold-tooth nickel steels
DE2039642A1 Metallic door frame arrangement