Assignee
COPERION GMBH
DE37 patents
Top patents by PatentIndex Score
US10815078B2Oct 27, 2020
Conveyor installation and method for conveying plastics granulate
COPERION GMBH14 citations80
US10647527B2May 12, 2020
Method for pneumatically conveying plastic pellets
COPERION GMBH12 citations80
US7607817B2Oct 27, 2009
Extruder having a set back gas-permeable wall portion
COPERION GMBH12 citations78
US8360627B2Jan 29, 2013
Screw machine having a vacuum housing insert
COPERION GMBH11 citations77
US11440221B2Sep 13, 2022
Device and method for producing a dyed and an undyed plastic melt
COPERION GMBH4 citations67
US11273576B2Mar 15, 2022
Device and method for producing plastic granulate
COPERION GMBH2 citations67
US11254520B2Feb 22, 2022
Conveying system and method for pneumatically conveying plastic granulate
COPERION GMBH4 citations66
US9688003B2Jun 27, 2017
Screw machine and method as well as processing installation for the processing of bulk material
COPERION GMBH6 citations66
US11174955B2Nov 16, 2021
Diverter valve for conveying a material and method for cleaning thereof
COPERION GMBH2 citations62
US10093034B2Oct 9, 2018
Device and method for the homogenisation of plastics material melts
COPERION GMBH5 citations60
US7815360B2Oct 19, 2010
Material processing plant with two extruding machines
COPERION GMBH4 citations59
US7717003B2May 18, 2010
Measuring device for detecting the state of wear of the bore walls of two interpenetrating housing bores
COPERION GMBH2 citations59
US12440814B2Oct 14, 2025
Feeding screw machine for feeding a processing screw machine
COPERION GMBH0 citations56
US7635235B2Dec 22, 2009
Worm shaft coupling
COPERION GMBH3 citations56
US10954083B2Mar 23, 2021
Cellular wheel sluice for granulate bulk product
COPERION GMBH0 citations53
US7547132B2Jun 16, 2009
Screw-type processing plant with elongation and expansion compensation devices
COPERION GMBH6 citations51
US11447345B2Sep 20, 2022
Connecting device for connecting a screw machine to a gear mechanism, and method for cleaning such a connecting device
COPERION GMBH0 citations49
US12076904B2Sep 3, 2024
Device and method for producing a dyed and an undyed plastic melt
COPERION GMBH0 citations46
US11911772B2Feb 27, 2024
Blade head for granulating strands of material and granulating apparatus having such a blade head and method for assembling such a blade head
COPERION GMBH0 citations46
US12370582B2Jul 29, 2025
Housing cleaning device for cleaning a housing of a screw machine
COPERION GMBH0 citations45
US12311405B2May 27, 2025
Method and device for producing a powder coating melt
COPERION GMBH0 citations45
US12057664B2Aug 6, 2024
Heating apparatus for at least one housing section of a screw extruder and method for servicing a heating apparatus of this kind
COPERION GMBH0 citations45
US11478970B2Oct 25, 2022
Housing component for a multi-shaft screw machine and method for the production of a housing component
COPERION GMBH0 citations45
USRE44826EApr 8, 2014
Screw extruder mechanism, in particular twin-screw extruder mechanism, for the processing of strongly outgassing materials
COPERION GMBH1 citations43
US7527422B2May 5, 2009
Drive unit for a twin-screw machine
COPERION GMBH0 citations43
US11986977B2May 21, 2024
Method and reprocessing installation for reprocessing film waste material
COPERION GMBH0 citations42
US11273590B2Mar 15, 2022
Starting-valve throttle device for delivering a melt from a screw extruder, and system for preparing bulk material having a starting-valve throttle device of this type, and method for delivering a melt from a screw extruder by means of a starting-valve throttle device of this type
COPERION GMBH0 citations41
US10882015B2Jan 5, 2021
Screw machine and method for the processing of material to be processed
COPERION GMBH0 citations41
US11117306B2Sep 14, 2021
Screw machine and method for the processing of material to be processed
COPERION GMBH0 citations38
US12540044B2Feb 3, 2026
Cellular wheel sluice for bulk material, and method for automatically clearing a cellular wheel of such a cellular wheel sluice
COPERION GMBH0 citations37
US11440063B2Sep 13, 2022
Diverter valve for conveying material to be conveyed and method for cleaning a diverter valve of this type
COPERION GMBH0 citations36
US12083729B2Sep 10, 2024
Treatment element for a treatment element shaft of a screw machine, and method for producing a treatment element
COPERION GMBH0 citations35
US10815556B2Oct 27, 2020
Method and apparatus for producing a mixture of a metallic matrix material and an additive
COPERION GMBH0 citations35
US12377580B2Aug 5, 2025
Strand pelletizer and method for adjusting the cutting gap of such a pelletizer
COPERION GMBH0 citations31
US10234013B2Mar 19, 2019
Gearbox assembly for a twin-screw extruder, treatment installation for material treatment comprising a gearbox assembly of this type, and method for the startup of a treatment installation comprising a gearbox assembly of this type
COPERION GMBH0 citations28
US9393717B2Jul 19, 2016
Method for starting up a processing plant for producing plastics material granulate and processing plant for producing plastics material granulate
COPERION GMBH0 citations28
US7648357B2Jan 19, 2010
Extruder
COPERION GMBH0 citations20