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HUFNAGL WALTER

Overview
  • Total Patents
    355
About

HUFNAGL WALTER has a total of 355 patent applications. Its first patent ever was published in 1951. It filed its patents most often in Germany, Austria and Switzerland. Its main competitors in its focus markets civil engineering, machine tools and machines are BAUSTAHLGEWEBE GMBH, CHUNG GYENG OK and FISCHER & CO.

Patent filings in countries

World map showing HUFNAGL WALTERs patent filings in countries
# Country Total Patents
#1 Germany 105
#2 Austria 97
#3 Switzerland 91
#4 United Kingdom 30
#5 Spain 12
#6 France 5
#7 Italy 4
#8 Japan 4
#9 Belgium 3
#10 United States 3
#11 Canada 1

Patent filings per year

Chart showing HUFNAGL WALTERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hufnagl Walter Dipl Ing 169
#2 Walter Hufnagl Dipl-Ing 61
#3 Hufnagl Walter 16
#4 Kaspar Adolf 16
#5 Hufnagl Walter Dipl-Ing 11
#6 Hufnagl Dipl-Ing Walter 9
#7 Adolf Kaspar 7
#8 Dipl Ing Walter Hufnagl 4
#9 Uaruteru Fuufunaguru 4
#10 Wuest Walter Dipl Ing 4

Latest patents

Publication Filing date Title
ATA433082A Method for producing ribbed reinforcement steel
DE2750369A1 METHOD AND DEVICE FOR APPLYING MIXTURES TO WIRE OR DGL.
DE2750380A1 Bar deformation by driven roll head - with one roll driven from auxiliary motor via worm gear
DE2710255A1 Girder mfr. by stamping from steel strip - followed by heat treatment to restore ductility to its required value
DE2651148A1 REINFORCEMENT BAR
DE2651119A1 REINFORCEMENT WIRE
DE2651106A1 DEVICE FOR DEFORMING METALLIC WIRE MATERIAL
DE2455167A1 Wire preparation for production of reinforcement wires or rods - involves large numbers of wire rings which are attached to wire roller spool
DE2449873A1 Wire straightening machine with rollers or dies - has ceramic coating on tool vibration absorbing substrate for process improvement
DE2449874A1 Roll for mfg. ribbed reinforcing bars - made using abrasion-resistant oxide combined with vibration-absorbing material
DE2362051A1 Mfg concrete reinforcing rods - stock material sprayed with oil emulsion before drawing
DE2329131A1 Concrete reinforcement mat prodn. method - welder supplied directly by straighteners to simplify operations
DE2166750A1 Roll for making ribbed reinforcing bars - has deep grooves in small diameter roll for increasing roll life by avoiding filling of grooves
DE2166872A1 High-ribbed round concrete reinforcing rod - has flattened sections and sections deviating from circle shape
DE2166871A1 High-ribbed round concrete reinforcing rod - has flattened sections and sections deviating from circle shape
DE2021805A1 Rod and wire roll bending esp for concrete reinforcements
DE1964586A1 Method and device for non-destructive testing of welds on reinforcing steel, bar steel and the like.
DE1961933A1 Method and device for non-destructive testing of welds on reinforcement mats
DE1957144A1 Longer life for wire straightening dies
DE1920447A1 High-strength, ductile, reinforcing steel, mats - and carriers obtained by heat-treating steel