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WERNER & PFLEIDERER

Overview
  • Total Patents
    1,744
About

WERNER & PFLEIDERER has a total of 1,744 patent applications. Its first patent ever was published in 1891. It filed its patents most often in Germany, United States and France. Its main competitors in its focus markets machines, foods and drinks and chemical engineering are GEYER PAUL, GNEUSS GMBH and TAMBOVSKOE N PROIZV OB POLIMER.

Patent filings per year

Chart showing WERNER & PFLEIDERERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lambertus Friedrich 32
#2 Wiedmann Werner 22
#3 Grimminger Albert 21
#4 Rudolph Joachim 18
#5 Ocker Herbert 18
#6 Haffa Walter 17
#7 Schweizer Otto 17
#8 Kopp Eugen 17
#9 Judex Helmut 14
#10 Eppler Eugen 14

Latest patents

Publication Filing date Title
WO2005096826A1 Oven
DE19637378A1 Device and method for granulating plastics
DE19637063A1 Extruder for the production of plastic granules
US5573332A Screw element for a screw-like extrusion machine
DE19536677A1 Partial worm shaft for a worm machine and process for its manufacture
DE19530026A1 Screw set element for screw machines
DE19528483A1 Process for the production of cutting knives for underwater pelletizing
DE19523490A1 Device and method for impregnating fiber strands with plastic material
DE19515473A1 Underwater pelletizing plate with wear protection layer
DE19515130A1 Device for measuring the torque input in multi-shaft extruders
DE19503508A1 Control procedures for extrusion machines
DE4430413A1 In situ cleaning of a screw extruder for thermoplastic, using a hot penetrating oil, obviates cooling
DE4426441A1 Two-shaft screw machine, in particular two-shaft extruder
DE4425004A1 Process for producing a nozzle plate with an intermediate layer embedded between the base body and the cutting body
DE4408235C1 Process and apparatus for automatically controlling the bearing pressure force of the cutting knives of an apparatus for granulating extruded plastics under water
DE4404031C1 Barrel section with electrical heating elements for a twin-screw extruder
DE4338030C1 Granules drier for abrasive and impact-sensitive plastics granules
DE4338032A1 Device for removing surface water from plastic strands
DE4334564A1 Device for adjusting the mass pressure in screw extruders
DE4331972A1 Measuring chamber dough dividing machine