Assignee
ANDRITZ AG MASCHF
AT·136 granted patents·10 pending applications·952 citations·filing 1972–2023
Top patents by PatentIndex Score
146 records- 0189US7022061B2Centrifuge discharge port with power recoveryANDRITZ AG MASCHF·Filed 2003·Granted Apr 4, 2006·40 cites·15 claims
- 0285US12365159B2Method and device for measuring the filtrate content on a screw pressANDRITZ AG MASCHF·Filed 2021·Granted Jul 22, 2025·2 cites·13 claims
- 0385US7690131B2Device for continuous drying of a pulp webANDRITZ AG MASCHF·Filed 2005·Granted Apr 6, 2010·14 cites·17 claims
- 0483US12319022B2Method for producing a screen body, and screenANDRITZ AG MASCHF·Filed 2020·Granted Jun 3, 2025·2 cites·29 claims
- 0583US7540938B2Method and system for energy savings in TMP by high temperature LC/MC refining of pulpANDRITZ AG MASCHF·Filed 2006·Granted Jun 2, 2009·9 cites·18 claims
- 0682US3942433ARoller arrangement in presses for the removal of water from materialsANDRITZ AG MASCHF·Filed 1974·Granted Mar 9, 1976·33 cites·2 claims
- 0781US7347140B2Screw press for separation of liquid from solid-liquid mixtures especially pulp suspensionsANDRITZ AG MASCHF·Filed 2005·Granted Mar 25, 2008·11 cites·12 claims
- 0880US10808360B2Method for producing a fibrous material webANDRITZ AG MASCHF·Filed 2016·Granted Oct 20, 2020·4 cites·16 claims
- 0980US4147101APress for dehydrating fibrous materials and other substancesANDRITZ AG MASCHF·Filed 1976·Granted Apr 3, 1979·22 cites·1 claims
- 1078US5036037AProcess of making catalysts and catalysts made by the processANDRITZ AG MASCHF·Filed 1990·Granted Jul 30, 1991·49 cites·7 claims
- 1177US10724175B2Rotor blade and screen comprising a rotor bladeANDRITZ AG MASCHF·Filed 2016·Granted Jul 28, 2020·2 cites·20 claims
- 1277US7125491B2Screen and process for manufacturing a screen of this kindANDRITZ AG MASCHF·Filed 2004·Granted Oct 24, 2006·13 cites·10 claims
- 1376US4849116AProcess and a plant for separating low density material from substrate mixturesANDRITZ AG MASCHF·Filed 1987·Granted Jul 18, 1989·48 cites·48 claims
- 1475US10870250B2Device for dewatering feedstock that is pourable or free-flowingANDRITZ AG MASCHF·Filed 2017·Granted Dec 22, 2020·2 cites·20 claims
- 1575US10046978B2Method for processing packing material to recover aluminiumANDRITZ AG MASCHF·Filed 2015·Granted Aug 14, 2018·1 cites·21 claims
- 1675US4481118AMethod and apparatus for rinsing filter cakeANDRITZ AG MASCHF·Filed 1982·Granted Nov 6, 1984·17 cites·16 claims
- 1774US4851119AMachine for pressing and dewatering or filteringANDRITZ AG MASCHF·Filed 1987·Granted Jul 25, 1989·21 cites·26 claims
- 1873US6808634B1Method and device for cross-flow filtrationANDRITZ AG MASCHF·Filed 2000·Granted Oct 26, 2004·31 cites·9 claims
- 1972US11052626B2Screw pressANDRITZ AG MASCHF·Filed 2017·Granted Jul 6, 2021·2 cites·20 claims
- 2072US7314538B2Process and device for discharging lignocellulose raw materials from a digester and conveying the raw material to a refinerANDRITZ AG MASCHF·Filed 2004·Granted Jan 1, 2008·13 cites·5 claims
- 2171US6920983B2Device for separating solids from liquids by means of flotationANDRITZ AG MASCHF·Filed 2003·Granted Jul 26, 2005·8 cites·17 claims
- 2271US6609530B1Process and apparatus for treating a continuous strip materialANDRITZ AG MASCHF·Filed 2000·Granted Aug 26, 2003·13 cites·32 claims
- 2370US9139449B2Method for reducing the content of fine material in FGD gypsumANDRITZ AG MASCHF·Filed 2013·Granted Sep 22, 2015·2 cites·9 claims
- 2470US6588599B2Screen for pulp processingANDRITZ AG MASCHF·Filed 2001·Granted Jul 8, 2003·9 cites·37 claims
- 2570US4544447ADehydration machine for pulp, sludges or similar fibrous materialsANDRITZ AG MASCHF·Filed 1983·Granted Oct 1, 1985·21 cites·5 claims
- 2670US4168580ADrying installation for treating webs of materialANDRITZ AG MASCHF·Filed 1973·Granted Sep 25, 1979·14 cites·11 claims
- 2769US6475337B2Process for aerating dispersionsANDRITZ AG MASCHF·Filed 2001·Granted Nov 5, 2002·9 cites·6 claims
- 2867US7357847B2Device for drying a paper webANDRITZ AG MASCHF·Filed 2004·Granted Apr 15, 2008·7 cites·12 claims
- 2967US6921443B1Process for producing stainless steel with improved surface propertiesANDRITZ AG MASCHF·Filed 2000·Granted Jul 26, 2005·5 cites·32 claims
- 3066US10280104B2Method for removing mercury from washer suspensionsANDRITZ AG MASCHF·Filed 2016·Granted May 7, 2019·1 cites·10 claims
- 3166US7384511B2Device for changing the cloth of a paper machineANDRITZ AG MASCHF·Filed 2005·Granted Jun 10, 2008·2 cites·20 claims
- 3266US4612123ARegulating apparatus for dewatering machinesANDRITZ AG MASCHF·Filed 1985·Granted Sep 16, 1986·29 cites·13 claims
- 3365US9856603B2Process for production of a fibrous pulp webANDRITZ AG MASCHF·Filed 2016·Granted Jan 2, 2018·1 cites·20 claims
- 3465US7060163B2Device for continuous drying of a pulp sheetANDRITZ AG MASCHF·Filed 2003·Granted Jun 13, 2006·6 cites·17 claims
- 3565US6792850B2Screw pressANDRITZ AG MASCHF·Filed 2002·Granted Sep 21, 2004·6 cites·17 claims
- 3665US6585854B2Device for aerating dispersionsANDRITZ AG MASCHF·Filed 2001·Granted Jul 1, 2003·10 cites·6 claims
- 3765US5238501AMethod for treatment of a fibrous material-fluid mixtureANDRITZ AG MASCHF·Filed 1990·Granted Aug 24, 1993·25 cites·12 claims
- 3863US11535983B2Method for producing a fibrous materialANDRITZ AG MASCHF·Filed 2017·Granted Dec 27, 2022·1 cites·20 claims
- 3963US7296684B2Screen for cleaning a fiber suspensionANDRITZ AG MASCHF·Filed 2004·Granted Nov 20, 2007·4 cites·19 claims
- 4063US7267231B2Process and device for aerating suspensionsANDRITZ AG MASCHF·Filed 2004·Granted Sep 11, 2007·4 cites·11 claims
- 4163US4885088AFilter belt pressANDRITZ AG MASCHF·Filed 1986·Granted Dec 5, 1989·15 cites·54 claims
- 4261US6998056B2Process and device for aerating a liquid with gasANDRITZ AG MASCHF·Filed 2002·Granted Feb 14, 2006·8 cites·8 claims
- 4361US5176189ADevice for transport of material between chambers at different pressures and process for operation of this deviceANDRITZ AG MASCHF·Filed 1990·Granted Jan 5, 1993·22 cites·26 claims
- 4461US5149515AProcess for the production or recovery of acids from metalliferous solutions of such acidsANDRITZ AG MASCHF·Filed 1990·Granted Sep 22, 1992·22 cites·7 claims
- 4561US5109764ADouble screen belt press with a wedge compression zone for dewatering mixtures of fibrous material suspensionsANDRITZ AG MASCHF·Filed 1990·Granted May 5, 1992·16 cites·19 claims
- 4660US9833732B2Filter for continuous filtration of a suspension under pressureANDRITZ AG MASCHF·Filed 2014·Granted Dec 5, 2017·3 cites·9 claims
- 4760US8349138B2Device for treating a pulp web in an extended nip pressing unitANDRITZ AG MASCHF·Filed 2010·Granted Jan 8, 2013·1 cites·10 claims
- 4860US2025290695A1Cylinder for Drying a Fibrous WebANDRITZ AG MASCHF·Filed 2023·Application pending·0 cites
- 4959US6923400B2Process and device for continuous reeling of a pulp sheetANDRITZ AG MASCHF·Filed 2002·Granted Aug 2, 2005·6 cites·5 claims
- 5059US6835283B2Process and device for measuring and controlling the nip pressure in the press of a paper machineANDRITZ AG MASCHF·Filed 2002·Granted Dec 28, 2004·7 cites·18 claims
Showing the top 50 of 146 patent records by PatentIndex Score.
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