Assignee
ANDRITZ PATENTVERWALTUNG
US·76 granted patents·1 pending application·1,011 citations·filing 1991–2002
Top patents by PatentIndex Score
77 records- 0197US6656415B2Process and device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zincANDRITZ PATENTVERWALTUNG·Filed 2001·Granted Dec 2, 2003·88 cites·19 claims
- 0291US5566611AApparatus for separating liquid from fibrous suspensionsANDRITZ PATENTVERWALTUNG·Filed 1993·Granted Oct 22, 1996·52 cites·44 claims
- 0382US6161305AProcess and plant for mechanical and thermal dewatering of sludgesANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Dec 19, 2000·32 cites·27 claims
- 0481US5544757AMethod and device for seperating pieces of woodANDRITZ PATENTVERWALTUNG·Filed 1994·Granted Aug 13, 1996·49 cites·35 claims
- 0577US5857406AScrew press for separating liquids from solid-liquid mixturesANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Jan 12, 1999·22 cites·13 claims
- 0674US5980850AProcess and plant for extraction or recovery of acids from solutions of these acidsANDRITZ PATENTVERWALTUNG·Filed 1996·Granted Nov 9, 1999·32 cites·3 claims
- 0774US5540846AProcess for filtering solid-liquid mixtures within an enclosed pressure spaceANDRITZ PATENTVERWALTUNG·Filed 1993·Granted Jul 30, 1996·38 cites·32 claims
- 0873US6003684ADevice for dewatering solid-liquid suspensionsANDRITZ PATENTVERWALTUNG·Filed 1996·Granted Dec 21, 1999·20 cites·26 claims
- 0972US5800694AProcess and plant for pickling materials made of steel, in particular stainless steelANDRITZ PATENTVERWALTUNG·Filed 1996·Granted Sep 1, 1998·30 cites·22 claims
- 1069US6451280B1Process for regeneration of acids from spent acidsANDRITZ PATENTVERWALTUNG·Filed 2000·Granted Sep 17, 2002·7 cites·47 claims
- 1169US6338773B1Device for dewatering solid/liquid suspensions, especially pulp suspensionsANDRITZ PATENTVERWALTUNG·Filed 1998·Granted Jan 15, 2002·19 cites·15 claims
- 1269US5515776AWorm press with tapered shaft coreANDRITZ PATENTVERWALTUNG·Filed 1993·Granted May 14, 1996·16 cites·16 claims
- 1368US5966838AProcess and apparatus for drying material with indirectly heated driers and for decontaminating waste gasANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Oct 19, 1999·21 cites·12 claims
- 1467US6145766AScrew device for dewatering and defibrating ligno-cellulose materialANDRITZ PATENTVERWALTUNG·Filed 1998·Granted Nov 14, 2000·15 cites·28 claims
- 1566US5942096AMethod and apparatus for electro-depositing a metal or alloy coating onto one or both sides of a metal stripANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Aug 24, 1999·27 cites·29 claims
- 1665US6409111B1Apparatus for reducing the oversized fraction of chipsANDRITZ PATENTVERWALTUNG·Filed 2000·Granted Jun 25, 2002·7 cites·19 claims
- 1765US5792352ADisc filter and filter elementsANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Aug 11, 1998·39 cites·24 claims
- 1865US5444904ADevice for replacing the knives of a disc chipperANDRITZ PATENTVERWALTUNG·Filed 1993·Granted Aug 29, 1995·19 cites·12 claims
- 1963US6058619AProcess and apparatus for drying material with indirectly heated driers and for decontaminating waste gasANDRITZ PATENTVERWALTUNG·Filed 1999·Granted May 9, 2000·17 cites·9 claims
- 2061US6398876B1Process for pickling steelANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Jun 4, 2002·18 cites·18 claims
- 2160US5382335AProcess and apparatus for the electrolytic treatment of continuously advancing electrically conductive materialANDRITZ PATENTVERWALTUNG·Filed 1992·Granted Jan 17, 1995·15 cites·24 claims
- 2259US6475345B2Device for feeding a pulp suspension with eccentric shaft adjustmentANDRITZ PATENTVERWALTUNG·Filed 2001·Granted Nov 5, 2002·3 cites·7 claims
- 2359US6250314B1Process of pickling stainless steelANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Jun 26, 2001·18 cites·25 claims
- 2459US6033579ARed mud dewatering and washing processANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Mar 7, 2000·33 cites·18 claims
- 2559US5775004AProcess and apparatus for drying a solid-liquid mixtureANDRITZ PATENTVERWALTUNG·Filed 1996·Granted Jul 7, 1998·16 cites·26 claims
- 2658US6253818B1Device for changing reels at paper machinesANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Jul 3, 2001·19 cites·12 claims
- 2756US6401636B2Process and device for incineration of particulate solidsANDRITZ PATENTVERWALTUNG·Filed 2001·Granted Jun 11, 2002·8 cites·33 claims
- 2855US5849202ARotary disc filtration process having means to prevent settlement of solidsANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Dec 15, 1998·22 cites·21 claims
- 2952US6214310B1Process for the extraction and regeneration of acids from spent acidsANDRITZ PATENTVERWALTUNG·Filed 1998·Granted Apr 10, 2001·9 cites·19 claims
- 3051US6216610B1Process and device for incineration of particulate solidsANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Apr 17, 2001·14 cites·21 claims
- 3151US6120671AMethod and apparatus for electrolytic pickling a metallic stripANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Sep 19, 2000·10 cites·23 claims
- 3250US6427706B1System for continuous treatment of steel stripANDRITZ PATENTVERWALTUNG·Filed 2000·Granted Aug 6, 2002·4 cites·42 claims
- 3349US5853495AProcess and device for surface treatment of strips with liquidsANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Dec 29, 1998·10 cites·34 claims
- 3449US5725696AProcess and plant for production of raw stainless steel castingsANDRITZ PATENTVERWALTUNG·Filed 1994·Granted Mar 10, 1998·8 cites·32 claims
- 3549US5246563AProcess for the electrolytic zinc coating of stainless steelANDRITZ PATENTVERWALTUNG·Filed 1992·Granted Sep 21, 1993·10 cites·12 claims
- 3648US5674396ARotary filter with a device for separating a solids/liquid mixture, particularly a pulp suspensionANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Oct 7, 1997·18 cites·8 claims
- 3745US6210650B1Process for regenerating hydrochloric acid from pickling plantsANDRITZ PATENTVERWALTUNG·Filed 1994·Granted Apr 3, 2001·13 cites·33 claims
- 3845US5522693AProcess and apparatus for stacking sheets, such as plates, leaves and foilsANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Jun 4, 1996·7 cites·19 claims
- 3944US5716455AProcess and apparatus for continuous surface treatmentANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Feb 10, 1998·9 cites·27 claims
- 4043US6470595B1Process and device for continuously drying protein-containing sludgeANDRITZ PATENTVERWALTUNG·Filed 1996·Granted Oct 29, 2002·10 cites·32 claims
- 4143US5939041AProcess and apparatus for removing metal oxide particles in the regeneration of pickling acidsANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Aug 17, 1999·12 cites·20 claims
- 4243US5725306AHigh efficiency mixer for mixing pulp material and treatment substancesANDRITZ PATENTVERWALTUNG·Filed 1994·Granted Mar 10, 1998·12 cites·21 claims
- 4342US5868903ADevice for dewatering and/or washing suspensions, in particular suspensions of fibrous materialsANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Feb 9, 1999·5 cites·31 claims
- 4442US5626766AProcess for controlling solids-liquid separationANDRITZ PATENTVERWALTUNG·Filed 1996·Granted May 6, 1997·12 cites·15 claims
- 4541US5678294AProcedure for replacing the knives of a disc chipperANDRITZ PATENTVERWALTUNG·Filed 1995·Granted Oct 21, 1997·6 cites·7 claims
- 4640US6217710B1Process for regulating a screw pressANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Apr 17, 2001·7 cites·10 claims
- 4740US5938913AProcess and device for electrolytic treatment of continuous running materialANDRITZ PATENTVERWALTUNG·Filed 1997·Granted Aug 17, 1999·7 cites·19 claims
- 4840US5637205AProcess for the electrolytical coating of an object of steel on one or both sidesANDRITZ PATENTVERWALTUNG·Filed 1992·Granted Jun 10, 1997·6 cites·11 claims
- 4938US6319366B1Headbox for feeding a pulp suspension to a dewatering installationANDRITZ PATENTVERWALTUNG·Filed 1999·Granted Nov 20, 2001·3 cites·10 claims
- 5038US5271672AApparatus having rotating arms and fluid outlet for treating and discharging a mediumANDRITZ PATENTVERWALTUNG·Filed 1991·Granted Dec 21, 1993·7 cites·30 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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