baber/WOPTO huggingface dataset:
Patent GR-3021490-T3 (GR)
Title: Process for treating packaging containing residues to recover the valuable substances.
Inventor: PAULS MATHIAS
IPC: B09B3/00
Filed: 1996-10-30
Abstract: The invention relates to a process for treating packaging containing residues to recover the valuable substances comprising the following steps performed in parallel: taking the packaging into a working container and extracting the residues with a solvent; transferring the solution containing residues from the working container into a sump; concentrating the residue-containing, solution in the sump by evaporating the solvent; condensing the evaporated solvent; feeding solvent back into the working container and, after adequate enrichment, recovering the residues in concentrated form from the sump; and an installation for implementing the process.
Patent GR-3022359-T3 (GR)
Title: Novel method for preparing taxane derivatives, novel derivatives thus obtained and compositions containing them.
Inventor: BOUCHARD HERVE
IPC: C07D409/12
Filed: 1997-01-23
Abstract: PCT No. PCT/FR93/01145 Sec. 371 Date May 23, 1995 Sec. 102(e) Date May 23, 1995 PCT Filed Nov. 22, 1993 PCT Pub. No. WO94/12484 PCT Pub. Date Jun. 9, 1994This invention relates to a method for the preparation of taxane derivatives having the formula (I) and pharmaceutical compositions which contain the derivatives thus obtained. In formula (I), R is hydrogen or acetyl, R1 is benzoyl or R2-O-CO wherein R2 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, phenyl or heterocyclyl and Het is a 5-membered optionally substituted aromatic heterocycle (thiophene, tiazole, furan, pyrrole, imidazole, oxazole, isoxazole, pyrazole). The products of formula (I) have remarkable antitumor and antileukemia properties.    <IMAGE>  (I)
Patent GR-3024357-T3 (GR)
Title: Novel anti-tumoral agent derived from dextran
Inventor: JOZEFOWICZ JACQUELINE
IPC: C08B37/02
Filed: 1997-08-01
Abstract: An agent for inhibiting the growth of tumor cells, comprising a dextran derivative consisting of a polysaccharide chain substituted with carboxymethyl and carboxymethylbenzylamide sulphonate groups, said derivative being designated by general formula (DX?CMY?BSZ?), wherein X represents the average number of unsubstituted saccharide units per 100 saccharide units, Y represents the average number of carboxymethyl groups per 100 saccharide units, and Z represents the average number of carboxymethylbenzylamide sulphonate groups per 100 saccharide units. Said agent is characterized in that X is equal to or lower than 50, Y is between 10 and 90, and Z is between 15 and 35.
Patent GR-3024593-T3 (GR)
Title: Low-stretch and dimensionally stable floor covering
Inventor: JUSTESEN KNUD ERIK
IPC: D06N7/00
Filed: 1997-09-02
Abstract: A low-stretch and dimensionally stable floor covering (1) comprising polymer-containing pile material (2) which is retained to a polymer-containing primary backing (3), to the back of which an underlying secondary backing layer (5) is retained by means of an interleafing adhesive layer (4). The secondary backing layer (5) comprises a needled fibre structure of thermoplastic, polymer-containing, continuous or staple fibres being inter-fixated by heating. The adhesive layer (4) comprises an organic, polymer-containing binder which is activated by heat application. According to the invention, at least the secondary backing layer and/or the binder layer comprise a substantially re-usable material. After being formed, the carpet is wound onto so-called broadloom rollers and can, if desired, be cut partially into carpet tiles. Thus, carpet tiles and broadloom carpets can be manufactured in the same production process.
Patent GR-3024598-T3 (GR)
Title: Metal complexes of acid adducts to dioxime ligands useful in labelling proteins and other amine-containing compounds
Inventor: LINDER KAREN E
IPC: A61K51/10
Filed: 1997-09-02
Abstract: Boronic acid adducts of metal dioxime complexes are useful as reagents for labeling proteins and other amine-containing compounds.
Patent GR-3029467-T3 (GR)
Title: Method of preparing a radioactive rhenium complex solution.
Inventor: MUSTO DOMINICK J
IPC: G09B19/00
Filed: 1999-02-23
Abstract: A modular fire fighter trainer for use in training fire fighters. This trainer includes at least one training subassembly or module having a training room with one or more simulated burnable items and having an equipment room with a burner control and a smoke generator, and includes a second control subassembly having a control room with a control panel connecting to the burner control and the smoke generator and includes a third interconnect subassembly having a hallway connecting to the training room and having an exterior doorway.
Patent GR-3030029-T3 (GR)
Title: Insecticidal n'-substituted-n, n'-diacylhydrazines.
Inventor: LIDERT ZEV
IPC: C07D311/58
Filed: 1999-04-22
Abstract: The present invention provides a process for producing a 2-substituted-3,4-fused heterocyclic benzoic acid, for example a 2-alkyl-3,4-fused heterocyclic benzoic acid or a 2-halo-3,4-fused heterocyclic benzoic acid, comprising effectively admixing a 3,4-fused heterocyclic benzoic acid and an alkyl lithium reagent followed by subsequent reaction with an electrophilic reagent.
Patent GR-3030136-T3 (GR)
Title: Watercraft drive with a rudder propeller
Inventor: KAUL STEFAN
IPC: B63H5/14
Filed: 1999-05-05
Abstract: PCT No. PCT/EP95/04481 Sec. 371 Date Apr. 14, 1997 Sec. 102(e) Date Apr. 14, 1997 PCT Filed Nov. 14, 1995 PCT Pub. No. WO96/15028 PCT Pub. Date May 23, 1996A watercraft drive has a double rudder propeller driven by a driving engine via a driving shaft (1), an angular gear (3, 4) and an output transmission shaft (5). A propeller (6, 7) is arranged at each end of the output shaft. A guiding device made of guide blades (8a, 8b) is arranged between the propellers to correct aerodynamic conditions between both propellers (6, 7) and thus to reduce energy losses.
Patent GR-3030366-T3 (GR)
Title: Adapter for bus bar systems
Inventor: MATHIOWETZ JOERG
IPC: H02G5/02
Filed: 1999-05-28
Abstract: The adapter has a socket element with insertion feet for engaging the socket element with the busbars. The direction of engagement is at 90 degrees to the direction in which the busbar runs and the socket element is automatically latched to the busbar system. The latching system (26) is mounted in the socket element (1) and has a knife edge (27) in the direction of engagement (B) so that at least one of the busbars (11) is pierced to hold the adapter in position when the socket element (1,8,9,10) is attached.
Patent GR-3030883-T3 (GR)
Title: PNA-synthesis using an aminoprotecting group which is labile against weak acids.
Inventor: BREIPOHL GERHARD DR
IPC: C07D473/18
Filed: 1999-07-30
Abstract: A process is claimed for preparing peptide nucleic acid (PNA) oligomers of formula (I) B-X = a gp. of formula (i)-(viii): f = 1-4; g = 0-3; Ro = H, 1-18C alkanoyl, 2-19C alkoxycarbonyl, 3-8C cycloalkanoyl (sic), 7-15C aroyl, 3-13C heteroaroyl or a gp. which enhances intracellular uptake of the oligomer or interacts with a target nucleic acid during hybridisation; A and Q = amino acid residues; k and m = 0-10; B = a natural or non-natural nucleotide base, opt. in prodrug form, or a base substitute; Qo = OH, NH2 or NHR"; R" = 1-18C alkyl, 2-18C aminoalkyl or 2-18C hydroxyalkyl; n = 1-50. The process comprises: (a) opt. coupling amino acids (Q<1>) to a support of formula L-(Polymer) by solid-phase synthesis, where L = a linking gp. contg. Qo in latent form and Q<1> = Q with optional side-chain protecting; (b) opt. removing the protecting gp. PG (sic) with a suitable reagent; (c) repeating steps (a) and (b) m-1 times to give (Q<1>)m-L-(Polymer); (d) coupling a cpd. of formula (II) to L-(Polymer) or (Q<1>)m-L-(Polymer): PG-X(B<1>)-OH (II) where PG is a weak-acid-labile protecting gp. and B<1> is B with opt. protected exocyclic amino or OH gps.; (e) removing PG; (f) repeating steps (d) and (e) n-1 times; (g) opt. coupling amino acids (A<1>) to the prod. by solid-phase synthesis, where A<1>=A with optional side-chain protection; (h) removing the protecting gp. PG (sic) with a suitable reagent; (i) repeating steps (g) and (h) k-1 times; (j) introducing Ro if Ro is other than H; and (k) cleaving the PNA oligomer from the prod. of formula (III) and simultaneously or subsequently deprotecting B<1>, A<1> and Q<1>: Ro-(A<1>)k-(X(B<1>))n-(Q<1>)m-L-(Polymer) (III).
Patent TR-201721428-T3 (TR)
Title: Bir buzdolabı.
Inventor: NİHAT KANDEMİR
IPC: F25D17/06
Filed: 2014-10-27
Abstract: Bu buluş, İçine soğutulacak gıdaların yerleştirildiği bir gövde (2), bir evaporatör (3), evaporatör (3) etrafındaki havayı gövde (2) içine üfleyen bir fan (4), gövde (2) üzerinde yer alan bir arka duvar (5), gövde (2) arka duvarı (5) arkasında kalacak şekilde gövde (2) üzerinde yer alan bir fan (4), fan (4) tarafından üflenen havanın gövde (2) içine ulaşmasını sağlayan bir açıklık (6) içeren bir buzdolabı (1) ile ilgilidir.
Patent GR-3033794-T3 (GR)
Title: Method for making a luminescent duplicate, and resulting duplicate
Inventor: PLANCHE PATRICK CLAUDE
IPC: B41M3/06
Filed: 2000-06-27
Abstract: A method for making a luminescent duplicate by preparing a film including a luminescent material, preparing a transparent filter to form a cohesion interface between the luminescent material and an image-bearing surface and restrict the influence of the colour of the luminescent material on the rendition of the duplicate, and printing an image on at least one light-transparent surface so that said image is transparent. The printing surface may be the surface of the filter, of a transparent medium or of the luminescent material.
Patent GR-3035345-T3 (GR)
Title: UV polymerizable enzyme paste for the production of biosensors and biosensors produced therewith
Inventor: ROHM INGRID
IPC: G01N27/327
Filed: 2001-02-01
Abstract: UV polymerisable enzyme paste for the prodn. of biosensors, esp. thick layer biosensors, contains:(a) a screen printable, UV polymerisable carrier;(b) ≥ 1 enzyme incorporated in the carrier, and opt.(c) mediators, co-factors and/or enzyme stabilisers. Also claimed are biosensors produced from the paste. <IMAGE>
Patent GR-3035772-T3 (GR)
Title: Improvement to the blank holder force regulating system in a press
Inventor: KERGEN RICHARD
IPC: B21D24/14
Filed: 2001-04-20
Abstract: PCT No. PCT/BE97/00063 Sec. 371 Date Aug. 17, 1998 Sec. 102(e) Date Aug. 17, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46337 PCT Pub. Date Dec. 11, 1997A stamping press comprising a blank-holder force-regulating system using fluid-operated compensating cylinders (5, 7). The variation in the force in the blank-holder pressure-regulating areas is thus compensated so as to maintain a predetermined constant pressure in the conventional blank-holder area. This pressure in the conventional blank-holder area can, by virtue of the invention, according to certain alternative embodiments, also be made to vary.
Patent GR-3036906-T3 (GR)
Title: Monoclonal antibody which specifically binds to tumor vascular endothelium and uses thereof.
Inventor: GARIN-CHESA PILAR
IPC: A61P35/00
Filed: 2001-10-16
Abstract: The invention is an isolated, sialylated glycoprotein, referred to as endosialin, which is expressed by tumor associated vascular endothelium and not normal vascular endothelium. The protein portion of the glycoprotein has a molecular weight of about 95 kilodaltons as determined by SDS-PAGE, and the glycoprotein has a molecular weight of about 165 kilodaltons, also as determined by SDS-PAGE. The oligosaccharides are linked by O-linkages to the protein. The glycoprotein is useful for making antibodies which are in turn used to identify tumor associated vascular endothelium.
Patent TR-201802728-T4 (TR)
Title: Heterolog genlerle donatılmış onkolitik adenovirüsler.
Inventor: BRIAN ROBERT CHAMPION
IPC: C12N7/00
Filed: 2014-10-24
Abstract: Mevcut açıklama, örneğin bir terapötik ve / veya haberci transgeni, özellikle bir serotip 11 adenovirüs gibi bir B grubu virüsü veya Ad11'in fiber, penton ve hekzonlu bir kimerik virüsünü, örneğin bu virüsü ihtiva eden bir farmasötik formülasyon gibi bir kompozisyon içeren en az bir transgen ile donatılan bir modifiye edilmiş adenovirüs ile, özellikle tedavide, daha da özel olarak kanserin tedavisinde virüs ve virüs formülasyonlarının kullanımı ile ilgilidir. Açıklama ayrıca virüs hazırlama proseslerini de kapsar.
Patent TR-201818748-T4 (TR)
Title: Mantolanmış Uzaktan Soğutmalı Sevk Borusu
Inventor: JÖRN WINKELS
IPC: F16L59/14
Filed: 2013-09-30
Abstract: Buluş, özellikle 3 ila 15°C?lik su sıcaklıklarında kullanmak için, bir metalik madde ileten borudan (1) meydana gelen bir mantolanmış uzaktan soğutmalı sevk borusu ile ilgilidir, bunun etrafı bir termik olarak izole eden tabaka (3) ile ve termik olarak izole eden bir tabakanın etrafını saran mahfazalı boru (4) ile sarılmıştır. Burada maddenin iletildiği borunun (1) ve termik olarak izole eden tabakanın (3) arasına çimento harcından (2) bir tabaka yerleştirilmiştir.
Patent TR-201901880-T4 (TR)
Title: OFDM bazlı yayın iletişim sistemi.
Inventor: SWEN PETERSEN
IPC: H04H60/91
Filed: 2014-11-27
Abstract: Bir dijital odyo/video bilgisi sinyali iletmek için OFDM bazlı yayın verici düzeneği olup, burada dijital odyo/video bilgisi sinyalinin kodlanmış bir versiyonu bir ağ tabakası bilgi sinyali elde etmek için DAB, DVB-T veya DVB-T2 tekniğine uygun olarak bir ağ tabakası kapsülleme aşamasında kapsüllenir. Ağ tabakası bilgi sinyali daha sonra bir Veri Hattı Tabakası bilgi sinyali elde etmek için bir Veri Hattı Tabakası dönüşüm aşamasında dönüştürülür, bu sinyal bir yayın bilgisi iletim sinyali elde etmek için bir Fiziki Tabaka dönüşüm aşamasına tabi tutulur.
Patent TR-201902444-T4 (TR)
Title: Soğutmalı hazneli kabine yönelik sırlı eleman.
Inventor: PIERRE SCHNEIDER
IPC: E06B3/663
Filed: 2014-05-28
Abstract: Buluş, birbirinden belirli bir mesafede bunları tutan bir aralayıcı (12) aracılığıyla birbirine birleştirilen en az bir birinci (10) ve bir ikinci (11) cam sac içeren en az bir yalıtkan sır içeren bir sırlı eleman (200) ile ilgilidir, söz konusu aralayıcı, söz konusu en az iki cam sacın üstü ve altı olmak üzere yan kenarlar boyunca ve söz konusu en az iki cam sac arasında uzanır, en az bir iç aralık (15), bir yalıtkan gaz ile dolu ve söz konusu iç aralık etrafından düzenlenen bir birinci (13) ve bir ikinci (14) periferik sızdırmazlık elemanları ile kapatılan bir kavite ve söz konusu en az bir yalıtkan sırı destekleyen en az bir şasi (201) içerir, söz konusu şasi, (i) bir sabit destek (21) ve (ii) sırlı elemanın açılmasına ve/veya kapatılmasına olanak sağlayan sabit destek üzerine mafsallanan bir mobil destek (22) içerir. Bu tür bir sırlı eleman, bir aralayıcı (12) içerir, söz konusu en az iki cam sacın yan kenarlarından en az biri boyunca uzanan birinci (13) ve ikinci (14) periferik sızdırmazlık elemanları, saydam bir reçineden oluşturulur ve söz konusu mobil destek, en az bir yan orta parçasından yoksundur.
Patent TR-201908965-T4 (TR)
Title: Bir konsantre güneş enerjisi santralinin bir reflektör düzeneğinin döndürülmesine yönelik sistem ve bu tür bir sistemi içeren konsantre güneş enerjisi santrali.
Inventor: PIERRIK BRU
IPC: F24S23/70
Filed: 2015-12-15
Abstract: Bir konsantre güneş enerjisi santralinin bir reflektör (10i) düzeneğinin döndürülmesine yönelik amaçlanan bir sistem, bir hat (L) boyunca reflektörleri (10i) kademelendiren ve her bir reflektörün (10i) bir döner bağlantılı montajını mümkün kılan mafsallama elemanlarını (11), mafsallama elemanlarından (11) ayrı uzaklaştırılan bir tahrik mili (12), tahrik milinin (12) döndürülmesini mümkün kılan bir aktüatör (13) ve mafsallama elemanlarından (11) ayrı çok sayıda iletim mekanizmasını (14) içerir, her bir iletim mekanizması (14), tahrik miline (12) mekanik olarak bağlanır ve söz konusu iletim mekanizması (14) tarafından ilişkilendirilen söz konusu reflektöre (10i) bir motor torkunun (CM) iletilmesi yoluyla, ilişkilendirilen söz konusu en az bir reflektörün (10i) karşılık gelen dönme ekseni (Ai) etrafında söz konusu iletim mekanizması (14) ile ilişkilendirilen en az bir reflektörün (10i) harekete geçirilmesini mümkün kılar.
Patent DE-10297062-T5 (DE)
Title: Atomabsorptionsspektrometer
Inventor: GREY RONALD GARWOOD
IPC: G01J3/04
Filed: 2002-08-06
Abstract: Atomabsorptionsspektrometer, das aufweist:  einen Monochromator;  einen optischen Weg zum Empfangen von Strahlung von einer Quelle und zum Richten der Strahlung zu dem Monochromator;  einen Probenabschnitt in dem optischen Weg;  wobei der Monochromator einen Eingangsspalt und ein Beugungsgitter aufweist; und  einen Detektor zum Empfangen von Strahlung von dem Monochromator;  wobei der Monochromator derart orientiert ist, daß der Eingangsspalt quer zu der Vertikalen angeordnet ist, so daß ein Bild von dem Spalt in dem Probenabschnitt, wenn Strahlung von dem Detektor entlang des optischen Wegs verläuft, quer zu der Vertikalen liegt, so daß sich Probenmaterial, das in einem Graphitofen erzeugt wird, von einem unteren Abschnitt des Graphitofens nach oben und über das quer angeordnete Bild des Spalts derart bewegen wird, daß von der Quelle kommende und entlang des optischen Wegs gehende Strahlung durch das Probenmaterial treten und von dem Detektor detektiert werden wird.
Patent DE-10393022-T5 (DE)
Title: Verfahren und Vorrichtung zum Kalibrieren der Position von Klingen einer Rollenschneidmaschine von einer Papiermaschine oder Kartonmaschine
Inventor: ALATALO JUKKA
IPC: B26D7/00
Filed: 2003-08-07
Abstract: Verfahren
zum Kalibrieren der Position von Klingen bei einer Rollenschneidmaschine
von einer Papiermaschine oder Kartonmaschine, wobei Klingen (11, 12)
an Klingenschlitten (11A, 12A) oder dergleichen angebracht werden,
die an Führungen
(14, 13) oder dergleichen angeordnet sind, wobei bei dem Verfahren
die Position der Klingen (11, 12) der Rollenschneidmaschine mittels
eines Mehrpunktmessverfahrens gemessen wird, wodurch die Position
des Klingenschlittens (11A, 12A) der jeweiligen Klinge (11, 12)
gemessen wird, dadurch gekennzeichnet, dass  bei dem Verfahren
die Position der Klingen (11, 12) mit einem Kalibrierwerkzeug (20)
kalibriert wird,  ein Positionierelement (21) des Kalibrierwerkzeugs
(20) so angeordnet wird, dass es eine Schneidkante (17) der zu kalibrierenden
Klinge (11) berührt,  die
Position des Kalibrierwerkzeuges (20) mittels des Mehrpunktmessverfahrens
gemessen wird, und  die Position der Schneidkante (17) der Klinge
(11) auf der Grundlage des Messergebnisses über die Position des Kalibrierwerkzeuges
(20) bestimmt wird.
Patent ES-2248098-T5 (ES)
Inventor: HAIMER FRANZ
IPC: B23B31/20
Filed: 2000-07-14
Granted: 2010-03-11
Abstract: A tool holder for a tool which can be rotated about an axis of rotation, in particular a drilling, milling or reaming tool, comprises a clamping shank which, in an end shank region ( 7 ), has an accommodating opening ( 9 ) which is central in relation to the axis of rotation and is intended for accommodating a retaining shank of the tool. Clamping surfaces for securing the retaining shank of the tool with a press fit are arranged on the circumferential casing of the accommodating opening. According to the invention, the end shank region ( 7 ) of the clamping shank has a plurality of at least more or less axially extending tension spokes ( 13 ) distributed in the circumferential direction, it being possible for said tension spokes to be subjected to an essentially radially outwardly directed tensile force in order for the clamping surfaces to be spread apart radially from one another. Acting on the tension spokes ( 13 ) are bridge elements ( 19 ) which bridge the circumferential spacing between the latter and of which the chord length measured between the points of attachment of the bridge elements to the tension spokes ( 13 ) can be increased when the tension spokes ( 13 ) are subjected to the action of tensile force.
Patent ES-2286727-T5 (ES)
IPC: E04B1/80
Filed: 2005-03-02
Granted: 2012-01-20
Abstract: An additive (3,4) has a thermally-resistant core and a thermally-activatable coating added to a mixture. The thermally-resistant core in the form of granulate or fiber material is made of perlite or thermosetting plastic material. The additive has a grain size of 0.3-2.5 millimeters. Independent claims are also included for the following: (A) an additive; and (B) an insulation material board manufacture.
Patent ES-2029479-T5 (ES)
Inventor: DENEKA CHARLES WILLIAM
IPC: B05C3/12
Filed: 1987-07-22
Granted: 1999-11-01
Abstract: In the process for applying a protective plastic coating to a glass optical waveguide fiber by the app                           lication of a curable liquid coating material thereto and the subsequent curing of the liquid coating to a protective plastic layer, the surface of the glass optical fiber is conditioned prior to the application of the liquid coating material thereto by replacing air adjacent the fiber surface with a selected gas preferably exhibiting high solubility in the liquid coating composition and resisting bubble formation in the liquid coating layer as it is formed.
Patent ES-2054091-T5 (ES)
Inventor: GIACOMELLI MARIO
IPC: F16B5/00
Filed: 1989-07-18
Granted: 1999-05-16
Abstract: There is disclosed a section member assembly for forming, in a simple and quick way, side-boards for trucks and the like. This section member assembly comprises a plurality of section members which are provided, at the end portions thereof which are to be mutually coupled, with snap engaging tooth members. These latter, in particular, in addition to providing a firm coupling of the single section members, also afford the possibility of recovering possible small clearances and are so designed and arranged as to allow for the section members to be mutually connected either by a fixed joint type of coupling or by means of a rotary joint type of coupling.
Patent ES-2146884-T5 (ES)
Title: Pasta fotosensible, visualizador a base de plasma y procedimientos para su fabricacion.
Inventor: IGUCHI YUICHIRO
IPC: H01J17/49
Filed: 1996-06-12
Granted: 2004-09-01
Abstract: SE SUMINISTRA UNA PASTA FOTOSENSIBLE QUE PERMITE LA FORMACION DE IMAGENES CON UNA ALTA RELACION DE ASPECTO Y UNA ALTA EXACTITUD ASI COMO UNA PANTALLA DE PLASMA QUE COMPRENDE LA PASTA FOTOSENSIBLE, LA PASTA FOTOSENSIBLE COMPRENDE, COMO COMPONENTES ESENCIALES, PARTICULAS INORGANICAS Y UN COMPONENTE ORGANICO QUE CONTIENE UN COMPUESTO FOTOSENSIBLE SIENDO LA DIFERENCIA ENTRE EL INDICE REFRACTIVO MEDIO DEL COMPONENTE ORGANICO Y EL INDICE REFRACTIVO MEDIO DE LAS PARTICULAS INORGANICAS DE 0.1 O INFERIOR.
Patent ES-2152100-T5 (ES)
Inventor: KLEIN THOMAS
IPC: C04B41/85
Filed: 1997-06-13
Granted: 2007-03-16
Abstract: PCT No. PCT/EP97/03087 Sec. 371 Date Apr. 30, 1998 Sec. 102(e) Date Apr. 30, 1998 PCT Filed Jun. 13, 1997 PCT Pub. No. WO97/49650 PCT Pub. Date Dec. 31, 1997An aqueous ruthenium chloride solution for blackening ceramic surfaces includes ruthenium chloride; water present in an amount effective to provide an aqueous solution of ruthenium chloride; and a buffer which is selected from the group consisting of sodium acetate, sodium propionate, potassium acetate, potassium propionate, and mixtures thereof, and which is present in an amount effective to provide the aqueous solution with a pH of at least 1.5. A method for dyeing a ceramic surface includes applying the aqueous solution of ruthenium chloride to a ceramic surface by at least one of spraying, dipping, painting and printing to provide a treated surface; drying and firing the treated surface at a temperature ranging from about 300 to about 1400 DEG  C. for a period of time ranging from one half hour to five hours; and grinding and polishing the treated surface to even out the treated surface.