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.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 8 | |
#2 | United Kingdom | 2 | |
#3 | France | 1 |
# | Industry | |
---|---|---|
#1 | Machines | |
#2 | Chemical engineering | |
#3 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Mixing | |
#2 | Preparation of materials | |
#3 | Shaping of plastics | |
#4 | Milling | |
#5 | Scaffolding |
# | Name | Total Patents |
---|---|---|
#1 | Herfeld F W Dr | 1 |
#2 | Walter Dr Herfeld Friedrich | 1 |
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 |