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FREIER GRUNDER EISEN METALL

Overview
  • Total Patents
    27
About

FREIER GRUNDER EISEN METALL has a total of 27 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Germany, United Kingdom and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, packaging and shipping and thermal processes are Wuxi xinmao forging co ltd, STOTZ AG A and GIESSEREI UND MASCHINENBAU FER.

Patent filings in countries

World map showing FREIER GRUNDER EISEN METALLs patent filings in countries

Patent filings per year

Chart showing FREIER GRUNDER EISEN METALLs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heinrich Klaus-Juergen Ing Gra 3
#2 Roetters Horst 3
#3 Otterbach Joachim Ing Grad 3
#4 Osenberg Klaus-Dieter 3
#5 Schaefer Gerd 3
#6 Otterbach Joachim 2
#7 Roetters Horst Ing Grad 2
#8 Schneider Klaus 2
#9 Heinrich Klaus Juergen 1
#10 Wilhelm Steffe 1

Latest patents

Publication Filing date Title
EP0089400A1 Evacuation device for a fly ash electrofilter, and method to operate it
EP0089380A1 Pneumatic transportation device and method for powdery or small-grained bulk material
DE2946299A1 Foundry sand reconditioning - by pneumatic sepn. producing residue of heavy and coarse particles
DE2708961A1 METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND
DE2703736A1 Batch type powder conveyor - with inlet seal device and means of weighing batches despatched
DE2445439A1 Foundry sand separating and recovery machine - including ball mill inside conical double sieve partitioned by baffle disc
DE2445459A1 Ball-mill for reclaiming used foundry sand - using perforated drum surrounded by fine sieve
DE2443865A1 Dosed feeding of granulates or foundry sand - using two dosers emptied by compressed air into conveyor duct
DE2429169A1 Regenerating used foundry sand - by burning off resin and cooling
DE2428069A1 Hydraulic arbor - has arbor body over which is telescoped a metal workpiece gripping sleeve
DE2428132A1 Foundry sand mixing appts - falling curtain of dry mixture blown by air jets and sprayed with liquid
DE2257198A1 Moulding sand and resin mixer - has thyristor control for DC motors of resin and hardener pump for adjustable mixing ratio
DE2256033A1 DEVICE FOR MONITORING AND, IF NECESSARY, TROUBLESHOOTING ON A CHAMBER LOADING DEVICE
DE622224C Tubular extractor for rock drilling dust
US1717813A Melting furnace
GB294234A Improvements in cupola furnaces
GB294027A Improvements in cupola furnaces
DE612743C Dust extractor
DE480087C Melting furnace with a collecting space for iron and slag in front of the shaft, from which iron and slag flow continuously in different directions
DE630761C Dust hood for extracting rock drilling dust