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HERFELD KG DR

Overview
  • Total Patents
    11
About

HERFELD KG DR has a total of 11 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Germany, United Kingdom and France. Its main competitors in its focus markets machines, chemical engineering and civil engineering are TAMBOVSK I KHIM MASH, VNI PK I KROVELNYKH GIDROIZOLY and VERVANT LTD.

Patent filings in countries

World map showing HERFELD KG DRs patent filings in countries
# Country Total Patents
#1 Germany 8
#2 United Kingdom 2
#3 France 1

Patent filings per year

Chart showing HERFELD KG DRs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Herfeld F W Dr 1
#2 Walter Dr Herfeld Friedrich 1

Latest patents

Publication Filing date Title
GB1339365A Mixing apparatus
DE2159732A1 SLEEVE DOWEL
DE2152869A1 Softening of thermoplastics - around inserted component using heat generated by friction
GB1307173A Method of mixing materials
FR2147491A5 Plastics mixer with frictional heating
DE2052031A1 Combined thermoplastics mixer and extruder
DE2015471A1 Plastics mixer with frictional heating
DE2011174A1 Cooled mixer used in plastics prepn
DE1632455A1 Plastic mixer with shredding device
DE1729530A1 Cooling device for plastic mixer