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HERFELD FRIEDRICH W

Overview
  • Total Patents
    57
About

HERFELD FRIEDRICH W has a total of 57 patent applications. Its first patent ever was published in 1969. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets chemical engineering, machines and environmental technology are SARAKUZ VALENTIN N, HERFELD GMBH & CO KG DR and SHIN NICHINAN KK.

Patent filings in countries

World map showing HERFELD FRIEDRICH Ws patent filings in countries

Patent filings per year

Chart showing HERFELD FRIEDRICH Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Herfeld Friedrich Walter Dr 23
#2 Herfeld Friedrich Walter 9
#3 Herfeld Friedrich W 9
#4 Herfeld Heir Ute 1

Latest patents

Publication Filing date Title
DE3543913A1 MIXING DEVICE
DE3529185A1 MIXER
DE3520040A1 DEVICE FOR MIXING GOODS
DE3512257A1 MIXING DEVICE
DE3433693A1 Mixing device
DE3433674A1 MIXING DEVICE
DE3426159A1 MIXING DEVICE
DE3400595A1 DISCHARGE DEVICE FOR A SCHUETTGUT-CONTAINER
DE3315946A1 Conveying device
DE3308712A1 METHOD AND MIXER FOR CONTINUOUSLY MIXING DRY FINE MATERIAL, IN PARTICULAR POWDER-SHAPED OR GRAINY PLASTIC
DE3301207A1 MIXING DEVICE
DE3208416A1 Mixing device
EP0055872A2 Mixer for compositions of plastics material
DE3123362A1 MIXING DEVICE
US4372686A Double-cone rotating mixer
DE3111124A1 Centrifugal mixer for dry materials and pastes
DE3046542A1 MIXING DEVICE AND METHOD FOR CLEANING THE SAME
DE3015390A1 Dry granulate esp. thermoplastic cooled and homogenised - with pneumatic extraction to storage vessel and recycling to cooler
DE3015404A1 MIXING TANKS
DE3014162A1 DOUBLE CONE TURN MIXER