| Patents for C03B 32 - Thermal after-treatment of glass products not provided for in groups , e.g. crystallisation, eliminating gas inclusions or other impurities (1,972) |
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| 11/06/1997 | WO1997041467A1 Ophthalmic filter materials |
| 11/06/1997 | WO1997041079A1 Bioactive ceramics and method of preparing bioactive ceramics |
| 10/16/1997 | WO1997037949A1 Manufacture of ceramic tiles from fly ash |
| 10/08/1997 | EP0799156A1 Manufacture of ceramic tiles from spent aluminum potlining |
| 10/07/1997 | US5674786 Method of heating and cooling large area glass substrates |
| 10/07/1997 | US5674304 Method of heat-treating a glass substrate |
| 09/12/1997 | WO1997032821A1 Method of increasing the initial transmittance of optical glass |
| 09/09/1997 | US5665133 Process for production of pure transparent quartz |
| 08/07/1997 | WO1997028480A2 Athermal optical device |
| 08/07/1997 | CA2243200A1 Athermal optical device |
| 07/24/1997 | WO1997026572A1 Athermal optical device |
| 07/24/1997 | WO1997026496A1 Forced convection heating apparatus and process for heating glass sheets therewithin |
| 07/24/1997 | CA2242676A1 Athermal optical device |
| 07/15/1997 | US5647882 Apparatus for the heating or cooling of plate-like or sheet-like flat glass |
| 07/02/1997 | CN1153375A Process for manufacturing crystallized glass substrate for magnetic discs |
| 07/01/1997 | US5643649 Controlled heating, annealing and cooling while disk is mounted on substrate which cools at the same rate |
| 06/10/1997 | US5637284 In a rotating cylinder tube |
| 06/10/1997 | CA2005644C Method for making infrared polarizing glasses |
| 06/03/1997 | US5634956 Mixing, melting, quenching, grinding, isostatic pressing, molding, crystallization and drawing and cooling at a temperature gradient to produce wollstanite needles dispersed in an apatite matrix |
| 05/22/1997 | WO1997018170A1 Refractive elements with radially graded properties and methods of making same |
| 05/02/1997 | EP0770584A1 Method for producing heat-resistant synthetic quartz glass |
| 04/23/1997 | CN1148034A Transparent glass-ceramics |
| 04/15/1997 | US5620496 Method of making stable optical devices employing radiation-induced index changes |
| 04/03/1997 | WO1997011921A1 Crystalline glass, crystallized glass, crystallized glass article, and process for producing crystallized glass article |
| 04/02/1997 | CN1146429A Method for continuous refining of quartz powder |
| 03/13/1997 | WO1997009278A1 Method for making an article having a gradient of composition |
| 03/04/1997 | US5607009 Method of heating and cooling large area substrates and apparatus therefor |
| 02/12/1997 | EP0757665A1 Cristobalite-contained silica glass, method of producing same and silica glass jig made of same |
| 01/28/1997 | US5597395 Method for low temperature precompaction of glass |
| 01/03/1997 | WO1997000407A1 Glass-ceramic cooking plate for gas cookers, and method for making same |
| 12/31/1996 | US5588979 Apparatus for continuously forming and processing a glass-ceramic |
| 12/31/1996 | US5588977 Glass material is foamed under a flow of a gaseous medium resulting from decomposition of carbides formed in the melt as a result of carbon content adjustment |
| 11/27/1996 | CN2241147Y Apparatus for production of slag glass ceramics sheet |
| 11/05/1996 | US5571301 Apparatus for making crystallized glass |
| 10/30/1996 | EP0739863A1 Transparent glass-ceramics |
| 10/30/1996 | CN1134336A Method for processing plate-type glass edge, thermal reinforced sheet glass and fire precaution |
| 10/29/1996 | CA2175163A1 Transparent glass-ceramics |
| 10/16/1996 | EP0737653A1 Process for continuously refining of quartz powder |
| 10/16/1996 | CN1133268A Transparent devitroceram |
| 10/02/1996 | EP0735006A1 Method for producing silica glass used for photolithography, and silica glass and optical members produced by the method |
| 09/26/1996 | WO1996029292A1 Process for preparing glass and for conditioning the raw materials intended for this glass preparation |
| 09/24/1996 | US5558690 Oxidation to combust carbonaceous material, volatize partial fluorine, vitrifying glass forming material to form glass-melt, molding into tiles |
| 09/06/1996 | WO1996026908A1 Cristobalite-contained silica glass, method of producing same and silica glass jig made of same |
| 08/20/1996 | US5547482 Method of making fused silica articles |
| 07/16/1996 | US5537505 Transparent glass-ceramics |
| 07/04/1996 | WO1996020130A1 Manufacture of ceramic tiles from spent aluminum potlining |
| 07/04/1996 | CA2208271A1 Manufacture of ceramic tiles from spent aluminum potlining |
| 07/03/1996 | EP0719742A1 Polarizing glass and production process thereof |
| 07/03/1996 | EP0719741A1 Process for the production of polarizing glass |
| 06/12/1996 | EP0716050A1 Transparent glass-ceramics |
| 05/26/1996 | CA2161494A1 Transparent glass-ceramics |
| 05/15/1996 | EP0711736A1 Pure transparent quartz glass and process for production thereof |
| 03/20/1996 | EP0702252A1 Method for producing photo-induced bragg gratings |
| 01/11/1996 | DE19524545A1 Defect-free glass object prodn. |
| 01/09/1996 | US5483628 Transparent glass-ceramics |
| 12/26/1995 | US5478371 Method for producing photoinduced bragg gratings by irradiating a hydrogenated glass body in a heated state |
| 09/27/1995 | EP0673888A1 Synthetic silica glass formed article for optical use and method for preparing the same |
| 09/21/1995 | DE4407547A1 Transparent esp. glass body with internal marking |
| 08/22/1995 | US5443607 Process for the production of a homogeneous ream-free body made of quartz glass |
| 07/05/1995 | CN1104615A Chemical preparing process for fine ferroelectric glass-ceramic powder |
| 06/21/1995 | CN1103854A An apparatus for the heating or cooling of plate-like or sheet-like flat glass |
| 05/17/1995 | EP0653652A1 Method for making stable optical devices employing radiation-induced index changes |
| 04/26/1995 | EP0649821A1 Apparatus for heating or cooling of flat glass sheets or strips |
| 04/25/1995 | US5410428 Absolute refractive index; uniformly distributed hydrogen molecule concentration |
| 04/05/1995 | CN1101015A Microcrystal glass using lithium-contained mineral as main raw material and its production method |
| 03/22/1995 | CN2192621Y Dam-shape brick hold structure of microcrystal glass mould mouth |
| 02/22/1995 | CN1099012A Process for thermal treatment of glass fiber preform |
| 02/21/1995 | US5392375 Glass having refractive index distribution |
| 02/14/1995 | US5389582 Cristobalite reinforcement of quartz glass |
| 01/18/1995 | EP0634374A1 Fine-grained canasite glass-ceramics for making memory storage devices |
| 11/30/1994 | EP0626349A2 Apparatus for making crystallized glass |
| 11/30/1994 | EP0626165A1 Glass material, living tissue replacement, method for preparing living tissue replacement, and living tissue replacement molding apparatus |
| 07/27/1994 | EP0429527B1 Method of enhancing the purity of fused quartz |
| 06/28/1994 | US5325230 Optical members and blanks of synthetic silica glass and method for their production |
| 06/15/1994 | CN1087882A Prodn. method for large area crystal grain orienting glass ceramic sheet material |
| 05/24/1994 | US5314522 Ink jet printer |
| 05/03/1994 | CA1329038C Heat treatment of flat photochromic sheet glass |
| 03/31/1994 | WO1994006726A1 Method and apparatus for heat treating glass |
| 03/23/1994 | CN1084143A Production of artificial crystalline stone and its colouring method |
| 12/14/1993 | CA1325101C Process for the manufacture of open porous sintered bodies being prepronderantly composed of glass ceramics |
| 11/16/1993 | US5261938 Process for producing rod glass having refractive index distribution |
| 08/26/1993 | DE4204406A1 Fully homogeneous glass body prodn. - by softening twisted body in hot mould to form glass bar with longitudinal axis perpendicular to layer structure, applying axial force to deform body then twisting bar along longitudinal axis |
| 08/17/1993 | US5236495 Dental material |
| 11/03/1992 | US5160362 Press molding in a vacuum |
| 09/23/1992 | EP0505307A2 A method for forming sealed co-fired glass ceramic structures |
| 06/30/1992 | US5126081 Heat treatment, isostatic pressure; foil wrapped body |
| 06/16/1992 | US5122176 Confining part and holder in deformable foil, heating, pressing to soften glass and cause it to flow into voids in composite |
| 05/06/1992 | EP0483752A2 Optical member made of high-purity and transparent synthetic silica glass and method for production thereof and blank thereof |
| 04/28/1992 | US5108477 Method for making a glass article |
| 03/17/1992 | US5096479 Electrolytic purification |
| 03/04/1992 | EP0473048A2 Calcium phosphate type glass-ceramic |
| 02/04/1992 | US5086352 Optical members and blanks or synthetic silica glass and method for their production |
| 01/16/1992 | DE4120257A1 High temp. super conductive component mfr. - by inserting metal substrate into glass preform, elongating and heat treating |
| 01/07/1992 | US5078768 Hot isostatic pressing of fluoride glass materials |
| 12/31/1991 | US5076902 Removal impurities from vitreous silica or silica glass |
| 12/17/1991 | US5073180 Preheating green sheet to pyrolyze binders, adding steam to burn off, replacing steam, raising temperature to densify and crystallize, holding to seal vias, cooling |
| 12/11/1991 | CN1056857A Process for manufacturing blackly microcrystal glass |
| 11/05/1991 | US5063003 Prehydrolysis of alkoxysilanes, atomizing oligomers, discharging spray into water to form cured polysiloxane beads in slurry, forming paste of separated beads, casting or molding, drying, heat treatment, sintering |
| 10/03/1991 | CA2013731A1 Furnace for heating highly pure quartz preform for optical fiber |
| 10/03/1991 | CA2013730A1 Furnace for producing high purity quartz glass preform |