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US1557990A
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1924-12-05 |
1925-10-20 |
Fred D Doty |
Boat
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1943-02-02 |
1946-07-16 |
Gen Electric |
Electrical apparatus
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1947-08-29 |
1950-03-28 |
Columbian Carbon |
Preparation of magnesium ferrite pigment
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1955-02-24 |
1959-09-15 |
Columbian Carbon |
Method for producing zinc ferrite pigment
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US3904421A
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1972-08-30 |
1975-09-09 |
Tada Kogyo Ltd |
Anticorrosive paint
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1972-10-25 |
1974-08-27 |
Smith G Labor |
Preparation of zinc ferrite yellow pigments
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FI50097C
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1973-02-12 |
1980-10-24 |
Outokumpu Oy |
Hydrometallurgiskt foerfarande foer aotervinning av zink koppar och kadmium fraon deras ferriter
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1975-08-23 |
1980-07-31 |
Bayer Ag, 5090 Leverkusen |
Aktive Korrosionsschutzpigmente auf Eisenoxidbasis
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1975-08-23 |
1980-07-08 |
Bayer Aktiengesellschaft |
Iron oxide-based anti-corrosion pigments
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1975-10-01 |
1977-08-16 |
Anglo American Clays Corp |
Un metodo para separar magneticamente contaminantes que ha- cen variar el color, poco susceptibles de ser atraidos mag- neticamente desde una arcilla.
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FR2340376A1
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1976-02-06 |
1977-09-02 |
Minemet Rech Sa |
Procede hydrometallurgique pour la dissolution selective de melanges de composes oxygenes
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1976-06-05 |
1979-05-29 |
Bayer Aktiengesellschaft |
Anti-corrosion pigments
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1976-09-14 |
1977-10-11 |
Pfizer Inc. |
Heat stable iron oxides
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1976-09-23 |
1978-01-31 |
Hazen Research, Inc. |
Process for recovering zinc from steel-making flue dust
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1977-05-24 |
1980-02-26 |
Bethlehem Steel Corporation |
Metallic abrasive produced from a steel mill waste material
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1977-05-24 |
1984-02-21 |
Bethlehem Steel Corporation |
Iron oxide paint pigment precursor
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JPS5413542A
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1977-06-30 |
1979-02-01 |
Toda Kogyo Corp |
Aqueous corrosion preventive coating
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1979-05-09 |
1981-09-29 |
Basf Wyandotte Corporation |
Yellow pigments stable at high temperatures
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FR2459293B1
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1979-06-15 |
1985-09-27 |
Siderurgie Fse Inst Rech |
Procede et dispositif de traitement hydrometallurgique des poussieres metallurgiques
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1979-10-04 |
1981-09-01 |
Gary Madsen |
Floating deck leg boots
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1980-05-05 |
1982-03-16 |
Halomet, Incorporated |
Separation of high grade magnetite from fly ash
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1980-05-05 |
1984-02-21 |
Halomet, Incorporated |
Separation of high grade magnetite from fly ash
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1980-06-19 |
1982-01-14 |
Bayer Ag, 5090 Leverkusen |
Verfahren zur herstellung von eisenoxidpigmenten mit verbesserter reinheit sowie deren verwendung
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1980-12-22 |
1988-07-19 |
Basf Corporation |
Process for removing soluble metal cations in iron oxide pigments
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1981-06-22 |
1983-08-02 |
Stephens Jr Frank M |
Process for recovering iron and zinc from steel making dusts
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1981-09-12 |
1983-03-24 |
Bayer Ag, 5090 Leverkusen |
Halogenarme zinkferrit-pigmente, verfahren zu ihrer herstellung und ihre verwendung
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1982-03-17 |
1983-05-31 |
The United States Of America As Represented By The United States Department Of Energy |
Recovery of iron oxide from coal fly ash
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1982-03-27 |
1983-09-29 |
Bayer Ag, 5090 Leverkusen |
Thermostabile eisenoxidpigmente
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1982-11-04 |
1987-09-04 |
Promotion Procedes Hydro Metal |
Procede de traitement de poussieres contenant du zinc, issues de fours d'acieries electriques
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1983-01-24 |
1983-10-11 |
The United States Of America As Represented By The Secretary Of The Interior |
Recovery of metals from grinding sludges
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1984-03-16 |
1985-09-26 |
Bayer Ag, 5090 Leverkusen |
Verfahren zur herstellung von gelbbraunen zinkferritpigmenten
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1984-09-28 |
1986-04-03 |
Basf Ag, 6700 Ludwigshafen |
Verfahren zur herstellung von feinteiligem isotropen ferritpulver mit spinellstruktur
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1985-01-31 |
1986-09-09 |
Amax Inc. |
Two-stage leaching process for steel plant dusts
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1985-01-31 |
1986-09-09 |
Amax Inc. |
Process for metal recovery from steel plant dust
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1985-04-10 |
1989-03-07 |
Electro Minerals (Canada) Inc. |
Automatic method for separating and cleaning silicon carbide furnace materials
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1985-12-10 |
1986-01-22 |
Gec Elliott Mech Handling |
Magnetic separators
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1986-01-29 |
1987-03-24 |
Florida Progress Corporation |
Method for the recovery of minerals and production of by-products from coal ash
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1986-02-20 |
1987-08-27 |
Heubach Hans Dr Gmbh Co Kg |
Neue korrosionsschutzpigmente und ihre herstellung und anwendung
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1986-03-28 |
1988-02-23 |
Edward Martinez |
Process for concentration of gold and uranium magnetically
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1986-08-21 |
1987-06-02 |
Smith & Mahoney, P.C. |
Recovery of useful materials from refuse fuel ash
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1986-10-24 |
1988-04-28 |
Basf Ag |
Plaettchenfoermige pigmente der allgemeinen formel mn(pfeil abwaerts)x(pfeil abwaerts)-al(pfeil abwaerts)y(pfeil abwaerts)fe(pfeil abwaerts)2(pfeil abwaerts)(pfeil abwaerts)-(pfeil abwaerts)(pfeil abwaerts)((pfeil abwaerts)(pfeil abwaerts)x(pfeil abwaerts)(pfeil abwaerts)+(pfeil abwaerts)(pfeil abwaerts)y(pfeil abwaerts)(pfeil abwaerts))(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts)
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1986-12-29 |
1989-02-07 |
Texaco Inc. |
Partial oxidation process with magnetic separation of the ground slag
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1987-03-20 |
1988-09-29 |
Basf Ag |
Plaettchenfoermige pigmente auf basis eisenoxid
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1988-03-03 |
1989-04-16 |
Colores Hispania |
Pigmento anticorrosivo y procedimiento para su obtencion.
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1988-03-21 |
1991-12-10 |
Gary Derdall |
Process for refining kaolin
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1988-06-09 |
1989-12-14 |
Bayer Ag |
Thermostabile zinkferrit-farbpigmente, verfahren zu ihrer herstellung sowie deren verwendung
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1988-06-24 |
1989-12-28 |
Bayer Ag |
Neue hitzestabile eisenoxidschwarz-pigmente, verfahren zu ihrer herstellung sowie deren verwendung
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1988-09-28 |
1992-07-07 |
Exprotech Company, Inc. |
Method of magnetic separation and apparatus therefore
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1988-09-28 |
1993-01-05 |
Exportech Company, Inc. |
Method of magnetic separation and apparatus therefore
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1989-05-02 |
1990-07-10 |
The Curators Of The University Of Missouri |
Multi-step process for concentrating magnetic particles in waste sludges
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1989-09-20 |
1993-07-13 |
Ecc International Inc. |
Process for producing a kaolin clay product
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1990-02-03 |
1991-08-08 |
Bayer Ag |
Schwarzes mangan-eisenoxid-pigment, verfahren zu seiner herstellung sowie dessen verwendung
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1990-05-24 |
1991-09-10 |
Board Of Control Of Michigan Technological University |
Wet process for fly ash beneficiation
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1990-05-24 |
1993-07-13 |
Board Of Control Of Michigan Technological University |
Wet process for fly ash beneficiation
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1990-06-18 |
1992-01-21 |
Hatch Associates Ltd. |
Processing of carbon steel furnace dusts
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1990-06-20 |
1998-01-14 |
三菱重工業株式会社 |
排煙脱硫方法
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1990-06-26 |
1992-01-02 |
Mann & Hummel Filter |
Verfahren und vorrichtung zur aufbereitung von rueckstaenden aus der spanabhebenden bearbeitung ferromagnetischer werkstoffe
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1990-11-22 |
1994-08-09 |
Toda Kogyo Corp. |
Spinel-type spherical, black iron oxide particles and process for the producing the same
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1991-02-05 |
1992-09-24 |
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1991-05-03 |
1995-02-28 |
Ashland Oil, Inc. |
Combination magnetic separation, classification and attrition process for renewing and recovering particulates
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1991-08-08 |
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Idaho Research Foundation, Inc. |
Recovery of non-ferrous metals from smelter flue dusts and sludges
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1993-06-22 |
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Method of producing magnetic powders from heavy metal sludges
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1991-10-15 |
1993-04-29 |
Genesis Research Corporation |
Coal cleaning process
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1991-12-18 |
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Beneficiation of furnace dust for the recovery of chemical and metal values
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1992-04-28 |
1994-07-26 |
Ecc International Inc. |
Method for improving rheological properties of kaolin clays
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1992-05-29 |
1995-06-02 |
Extramet Sa |
Procédé de décontamination des terres polluées par des métaux.
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摩擦材用粉鉄の原料及びその還元処理方法
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1993-02-11 |
1997-06-12 |
Corveagh Limited |
Colouring pigment and method of manufacture
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1993-04-06 |
1994-08-30 |
Engelhard Corporation |
Method for bleaching kaolin clay
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1994-03-04 |
1995-10-31 |
Eriez Manufacturing Company |
Rotating drum magnetic separator
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마그네타이트 입자 및 그 제조방법
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1994-11-14 |
1996-07-09 |
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Recovery of manganese from leach solutions
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1995-01-06 |
1996-10-29 |
Lockheed Martin Corporation |
Method for removing metal contaminants from flue dust
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1995-01-23 |
1998-01-20 |
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Hydrometallurgical processing of flue dust
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1997-10-10 |
Wheelabrator Allevard |
Procede de preparation de pigments mineraux, pigments mineraux ainsi obtenus, et installation pour la mise en oeuvre d'un tel procede
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1995-10-30 |
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Metallurgical dust recycle process
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1995-12-26 |
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Converting zinc chloride to zinc oxide during the hydrometallurgical processing of flue dust
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Recovery of iron oxides from polluted coal mine drainage
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Fluidized bed treatment of electric arc furnace dust
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Verfahren zur Herstellung anorganisch beschichteter Pigmente und Füllstoffe
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Method for extraction of metals and non-metals from minerals, industrial by-products and waste materials
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1998-01-26 |
1999-07-28 |
Laporte Industries Ltd |
Process for making black iron oxide pigment
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1998-03-20 |
1999-09-23 |
Bayer Ag |
Verfahren zur Herstellung von Eisenoxid-Pigmenten aus Dünnsäure aus der TiO¶2¶-Herstellung
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1998-03-20 |
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Thiele Kaolin Company |
Process for beneficiating kaolin clays
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Method of producing reduced iron agglomerates
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1998-08-18 |
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Immunivest Corporation |
Apparatus and methods for magnetic separation
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1999-02-17 |
2000-10-31 |
Mineral Resource Technologies, Llc |
Method of making a mineral filler from fly ash
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1999-02-17 |
2001-06-05 |
Mineral Resources Technologies, Llc |
Method of making mineral filler and pozzolan product from fly ash
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1999-05-11 |
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Eastroc Llc |
Method of purifying flue gas waste slurries for use in gypsum production
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1999-09-27 |
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Chester W. Whitman |
Process to selectively recover metals from waste dusts, sludges and ores
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2000-02-23 |
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Recupac |
Procede de valorisation des poussieres d'acieries
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2001-05-04 |
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Envirosafe Services Of Ohio, Inc. |
Treatment of electric arc furnace dust to resist acid and alkaline leaching of heavy metals
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2001-06-04 |
2002-04-21 |
Pigmentan Ltd |
Paints and coatings composition useful for corrosion inhibition and a method for production therefor
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2003-04-17 |
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The Shepherd Color Company |
Strontium iron manganese black pigment
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