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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →