| 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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| 10/01/1991 | US5053359 Cristobalite reinforcement of high silica glass |
| 09/17/1991 | US5049175 Method of manufacturing a glass body having a non-uniform refractive index |
| 09/05/1991 | WO1991012881A1 Process for treating a powder and device therefor |
| 08/22/1991 | DE4005328A1 Verfahren zur konditionierung eines pulvers und vorrichtung dafuer Method for conditioning a powder and apparatus therefor |
| 06/05/1991 | EP0429527A1 Method of enhancing the purity of fused quartz. |
| 04/02/1991 | CA1282244C Method of producing effective porous glass shapes |
| 03/13/1991 | CN1049835A Manufacturing method of glass-ceramic type facing material |
| 01/23/1991 | CN1048694A Glass colour-changed due to gradual light-changing and making process thereof |
| 01/22/1991 | US4986939 Method for the production of cylindrically symmetric bodies with a radial gradient |
| 01/01/1991 | US4981503 Nitriding |
| 12/12/1990 | EP0401845A2 Optical members and blanks of synthetic silica glass and method for their production |
| 10/30/1990 | US4966613 Method of producing effective porous glass shapes |
| 10/02/1990 | US4961025 Cathode for image intensifier tube having reduced veiling glare |
| 08/29/1990 | EP0384555A1 Method for making infrared polarizing glasses |
| 07/03/1990 | US4938788 Method of producing uniform silica glass block |
| 07/03/1990 | CA1271042A1 Method of manufacturing glass bodies |
| 05/23/1990 | EP0369091A1 Method for manufacturing amorphous silica objects |
| 05/01/1990 | US4921655 Preparation of compact, crystalline and pore-free moldings from oxide ceramic |
| 03/28/1990 | EP0199787B1 Vitreous silica |
| 03/13/1990 | US4908054 Method for making infrared polarizing glasses |
| 03/08/1990 | WO1990002103A1 Vitreous silica articles |
| 02/27/1990 | US4904291 Sintering of powder and an inorganic salt, with a defined grade of grain which has a higher desielication temperature |
| 10/17/1989 | US4874417 Method of purifying vitreous silica |
| 07/25/1989 | US4851024 Process for producing optical glass |
| 07/25/1989 | US4851022 Method and oven for ceramising glass plates |
| 07/11/1989 | CA1257299A1 Chemically durable porous glass and process for the manufacture thereof |
| 07/05/1989 | EP0322881A2 Method of producing uniform silica glass block |
| 07/04/1989 | US4844724 Method of adjusting refractive index distribution lenses |
| 06/27/1989 | CA1256460A1 Barium and/or strontium aluminosilicate crystal- containing glasses for flat panel display devices |
| 04/25/1989 | US4824463 Process for ceramising glass-ceramic sheets |
| 04/11/1989 | CA1252347A1 Coloured glass articles |
| 03/29/1989 | EP0308780A1 Method of preparing porous sintered articles |
| 02/21/1989 | CA1250322A1 Glass-ceramics suitable for ring laser gyros |
| 02/15/1989 | EP0303123A2 Heat treatment of flat photochromic sheet glass |
| 12/20/1988 | CA1247149A1 Glass-ceramic product and method of making same |
| 11/22/1988 | US4786305 Placing on a carrier sheet, deformation and defect free |
| 11/09/1988 | EP0289918A1 Process for preparing compact, crystalline and pore-free moulded articles from oxide ceramics |
| 11/08/1988 | US4783429 No alkali containing biocompatible glass ceramic with apatite, wollastonite and diopside crystals mixed |
| 11/01/1988 | US4781744 Calcium phosphate crystallized glass |
| 10/26/1988 | EP0288051A1 High-hardness silica glass and method of producing same |
| 10/18/1988 | US4778777 Chemically durable porous glass and process for the manufacture thereof |
| 10/11/1988 | US4777151 Containing fluorophlogopite crystals |
| 08/30/1988 | US4767725 Crystallized glass-ceramic molded product and method of manufacturing |
| 07/26/1988 | US4759787 Applying a polarization potential across the wall to cause impurity ions to migrate away from inner wall |
| 07/26/1988 | CA1239655A1 B.sub.2o.sub.3-p.sub.2o.sub.5-sio.sub.2 glass- ceramics |
| 06/28/1988 | CA1238656A1 Glass for tungsten-halogen lamps |
| 06/28/1988 | CA1238655A1 Reinforcement of alkaline earth aluminosilicate glass-ceramics |
| 06/22/1988 | CN87211776U Developed electric stove for thermal treatment of glass ware |
| 06/21/1988 | CA1238246A1 Method for producing glass preform for optical fiber |
| 05/31/1988 | US4747863 Method of manufacturing glass bodies |
| 05/24/1988 | US4746632 Fluormica, fluoramphibole, canastite, fluorrichterite, fluorapatite or spodumene with molybdenum, tun-sten and-or arsenic oxide glass fibers |
| 04/27/1988 | EP0265045A1 Refractory glass-ceramics containing enstatite |
| 03/30/1988 | EP0261514A1 Method and apparatus for ceramizing sheets of glass ceramics |
| 03/16/1988 | EP0260063A2 Synthesis of inorganic crystalline fibers |
| 12/29/1987 | CA1230893A1 Lithium alumino-silicate glass-ceramics |
| 11/17/1987 | US4707458 Glass-ceramics suitable for ring laser gyros |
| 08/18/1987 | US4687749 Refractory glass-ceramics containing enstatite |
| 07/21/1987 | US4681614 Method of manufacturing glass bodies |
| 05/20/1987 | EP0222478A1 Glass-ceramics containing cristobalite and potassium fluorrichterite |
| 05/12/1987 | US4664690 Method for producing glass preform for optical fiber |
| 05/06/1987 | EP0220829A1 Barium and/or strontium aluminosilicate crystal-containing glasses for flat panel display devices |
| 05/06/1987 | EP0220764A1 Chemically durable porous glass and process for the manufacture thereof |
| 04/15/1987 | EP0218199A1 Mold |
| 04/14/1987 | US4657875 Articles of porous glass and process for preparing the same |
| 01/28/1987 | EP0209927A1 Method for preparing glass bodies |
| 01/07/1987 | EP0207591A2 Glass-ceramic product and method of making the same |
| 01/06/1987 | US4634683 Substrate for polycrystalline silicon transistor |
| 12/10/1986 | EP0204434A2 Glass-ceramics suitable for ring laser gyros |
| 11/26/1986 | EP0202751A1 B2O3-P2O5-SiO2 Glass-ceramics |
| 11/05/1986 | EP0199787A1 Vitreous silica. |
| 10/29/1986 | EP0198977A1 Reinforcement of alkaline earth aluminosilicate glass-ceramics |
| 10/15/1986 | EP0197585A1 Method for making glass bodies |
| 10/15/1986 | CN85108548A Reinforcement of alkaline earth aluminosilicate glass-ceramics |
| 10/07/1986 | US4615987 Reinforcement of alkaline earth aluminosilicate glass-ceramics |
| 09/30/1986 | CA1212125A1 Embedding material useful in preparing glass-ceramic products |
| 08/26/1986 | US4608348 Glass-ceramics containing cristobalite and potassium fluorrichterite |
| 08/12/1986 | US4605632 Glass for tungsten-halogen lamps |
| 06/04/1986 | EP0183183A2 Method of producing effective porous glass shapes |
| 05/22/1986 | WO1986002919A1 Vitreous silica |
| 05/21/1986 | EP0181690A1 Glass for tungsten-halogen lamps |
| 05/13/1986 | CA1204455A1 Potassium fluorrichterite glass-ceramics and method |
| 04/01/1986 | CA1202488A1 Glass-ceramic articles having metallic surfaces |
| 03/26/1986 | EP0175067A1 Method for producing glass preform for optical fiber |
| 03/18/1986 | US4576920 Oxides of boron, phosphorus, silicon |
| 01/14/1986 | CA1199179A1 Thermally toughening glass |
| 01/14/1986 | CA1199178A1 Thermally toughening glass |
| 12/24/1985 | US4560667 Halogen glasses modified with carbon disulphide and process of preparation |
| 10/02/1985 | EP0156479A1 Lithium alumino-silicate glass ceramics |
| 09/10/1985 | US4540671 Glass-ceramic product |
| 05/21/1985 | US4518222 Optical device and method |
| 04/16/1985 | US4511664 Process for manufacturing ceramic fibers consisting mainly of alumina and silica |
| 04/16/1985 | US4511384 Quenching with aerated alumina particles |
| 04/10/1985 | EP0136767A2 A process for manufacturing ceramic fibres consisting mainly of alumina and silica |
| 01/29/1985 | CA1181557A1 Polycrystalline zinc sulfide and zinc selenide articles having improved optical quality |
| 01/22/1985 | US4494972 Quenching with particulate material |
| 01/15/1985 | US4493723 Method of and apparatus for thermally toughening glass |
| 12/04/1984 | US4486213 Protective skin glass over core |
| 11/28/1984 | EP0126572A1 Potassium fluorrichterite glass-ceramic and method |
| 10/30/1984 | US4479819 Infrared polarizing glasses |
| 10/24/1984 | EP0122711A1 Embedding material useful in preparing glass-ceramic products |