| Patents for C03B 20 - Processes specially adapted for the production of quartz or fused silica articles (2,756) |
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| 01/26/1995 | DE4338807C1 Moulding having a high content of silicon dioxide, and process for the production of such mouldings |
| 01/18/1995 | EP0634360A1 Process for the preparation of highly dispersed silica and apparatus for carrying out the process |
| 01/05/1995 | WO1995000450A1 Improvements in vitreous silica manufacture |
| 01/05/1995 | CA2165182A1 Improvements in vitreous silica manufacture |
| 01/03/1995 | US5379364 Vitreous silica product manufactured via a sol-gel process using a polymer additive |
| 01/03/1995 | US5378256 Method of manufacturing silica waveguide optical components |
| 12/27/1994 | US5376767 Plasma torch and an apparatus for producing fused silica using plasma arc electrodes |
| 12/21/1994 | EP0629580A1 Synthetic quartz glass powder and process for producing the same |
| 12/14/1994 | EP0628521A1 Apparatus for vitrifying soot preform for optical fiber |
| 12/09/1994 | CA2125320A1 Apparatus for vitrifying soot preform for optical fiber |
| 12/07/1994 | EP0627390A1 Viscosity tailoring of fused silica |
| 12/07/1994 | CN1096012A Process for production of glass preform for optical fiber |
| 12/02/1994 | CA2123019A1 Viscosity tailoring of fused silica |
| 11/30/1994 | CN1026776C Apparatus for forming porous preform used to fabricate optical fiber |
| 11/22/1994 | CA1333146C Method of forming silicon dioxide glass films |
| 11/16/1994 | CN1026576C A method of manufacturing a silica glass preform |
| 11/15/1994 | US5364432 Method for producing a composite glass body with drawing of concentric melts |
| 11/02/1994 | EP0622340A1 Improvement in the method for the preparation of a synthetic silica glass body |
| 11/02/1994 | EP0622334A1 Method for making fumed silica |
| 10/05/1994 | CN1093064A Method and apparatus for making glass objects from glass feedstock |
| 09/21/1994 | CN1092389A Process for production of glass preform for optical fiber and apparatus for the same |
| 09/20/1994 | CA2004806C Method of fabricating optical fibres by the solution-doping technique |
| 09/15/1994 | WO1994021010A1 Light guide for optical fibre amplifiers for the wavelength range around 1300 nm |
| 09/15/1994 | CA2157514A1 Method of fabricating a preform for an amplifying optical waveguide, and an optical waveguide |
| 09/07/1994 | EP0613866A1 Process for production of glass preform for optical fiber |
| 08/23/1994 | US5340560 Method for making fumed silica having a reduced aggregate size and product |
| 08/17/1994 | EP0610930A2 Process for production of glass preform for optical fiber and apparatus for the same |
| 07/27/1994 | EP0607433A1 Quartz glass plate large in size and high in purity, and method and device for making said plate |
| 07/27/1994 | EP0429527B1 Method of enhancing the purity of fused quartz |
| 07/26/1994 | US5332702 Low sodium zircon refractory and fused silica process |
| 07/06/1994 | EP0604786A2 Method and apparatus for making glass objects by drawing glass preforms |
| 07/01/1994 | CA2103396A1 Method and apparatus for making glass objects from glass feedstock |
| 06/21/1994 | US5322539 Quartz tank member and method of production thereof |
| 06/07/1994 | US5318432 Apparatus for forming porous preform used to fabricate optical fiber |
| 06/01/1994 | EP0598987A1 Doped quartz glass, process for its manufacture and electric lamp comprising doped quartz glass components |
| 06/01/1994 | EP0420989B1 Sintering furnace for producing quartz base material |
| 05/24/1994 | US5314517 Method controlling the draw rate in the drawing of a glass feedstock |
| 05/17/1994 | US5312471 Method and apparatus for the manufacture of large optical grade SiO2 glass preforms |
| 05/03/1994 | US5308446 Fused quartz member for use in semiconductor manufacture |
| 04/26/1994 | US5306388 Quartz glass crucible for pulling a semiconductor single crystal |
| 03/23/1994 | EP0588284A1 Metal halide discharge lamp |
| 03/15/1994 | US5294480 Moldings or sheets made from silica aerogels |
| 02/23/1994 | EP0583943A2 Manufacture of a vitreous silica product by a sol-gel process |
| 02/23/1994 | CN1082516A Manufacture of vitreous silica product |
| 02/17/1994 | WO1994003404A1 Quartz glass plate large in size and high in purity, and method and device for making said plate |
| 02/16/1994 | CN2156185Y Multi-point holding drawing type quartz glass pipe extruding device |
| 02/15/1994 | US5287427 Method of making an article comprising an optical component, and article comprising the component |
| 02/09/1994 | EP0582070A1 Process of making doped glass |
| 01/12/1994 | EP0578553A1 Process of making a silica powder and use of such a powder in the manufacture of optical fibre preforms |
| 01/08/1994 | CA2099960A1 Process for making silica powder and its use in the making of preform for optical fiber |
| 12/29/1993 | CN2151147Y Thick wall silex pipe one-step former |
| 12/22/1993 | EP0575157A1 Method of manufacturing silica waveguide optical components |
| 11/10/1993 | EP0569182A1 Photoinduced refractive index change in hydrogenated germano-silicate waveguide |
| 11/10/1993 | CN1078309A Method of manufacturing optical fiber preform |
| 11/10/1993 | CN1022681C Method for mfg. fiber preform for single-mode fibers |
| 10/26/1993 | US5256855 Silica production |
| 10/26/1993 | US5256196 Precipitated silica paste |
| 10/20/1993 | EP0566325A1 Process and apparatus for manufacture of containers for materials being heated |
| 10/14/1993 | CA2093758A1 Process and apparatus for manufacture of containers for materials being heated |
| 10/13/1993 | EP0565439A1 Manufacturing method for erbium-doped silica glass optical fibre preforms |
| 10/13/1993 | EP0565277A1 Sol-gel method of making multicomponent glass |
| 10/13/1993 | EP0564707A1 Process and apparatus for making a composite glass preform |
| 10/12/1993 | US5252274 Process for manufacture of containers for materials being heated |
| 10/12/1993 | CA1322851C Method for producing preform for optical fiber |
| 10/05/1993 | US5250097 Method for producing glass soot deposit |
| 10/05/1993 | US5250096 Sol-gel method of making multicomponent glass |
| 09/21/1993 | US5246733 Multilayer |
| 09/21/1993 | US5246475 Method for preparing a fused silica glass body co-doped with a rare earth element and aluminum |
| 08/31/1993 | US5240488 Manufacture of vitreous silica product via a sol-gel process using a polymer additive |
| 08/17/1993 | US5236876 Body of cerium-doped quartz glass |
| 08/17/1993 | CA1321299C Selective volitization method for preparing fiber optics |
| 07/28/1993 | EP0552484A2 Formed pieces or plates from silica-aerogel |
| 06/22/1993 | CA1319258C Method and apparatus for fabricating an expanded beam cylindrically terminated optical fiber taper |
| 06/01/1993 | US5215564 Process for the production of an optical waveguide preform |
| 05/25/1993 | CA1318131C Fabrication of high-silica glass article |
| 05/19/1993 | EP0541649A1 A method of making sol-gel monoliths |
| 05/11/1993 | US5210816 Optical fiber and process of producing same |
| 05/11/1993 | CA1317464C Method of and apparatus for overcladding an optical preform rod |
| 04/28/1993 | EP0538941A1 An improved sol-gel method for the preparation of monolithic multicomponent oxide glasses |
| 04/27/1993 | US5206189 Gelling a mixture of silicon alkoxide, titanium alkoxide, alcohol, water and acid; uniformly diffusing alkali metal salt; precipitation; sintering |
| 04/14/1993 | CN1070897A Method of manufacturing silica glass preform |
| 04/06/1993 | CA1315525C Organometallic-derived cordierite and other compounds comprising oxides of silicon |
| 03/30/1993 | CA1315107C Heating oven for preparing optical waveguide fibers |
| 03/24/1993 | CN1070169A Apparatus for forming porous preform used to fabricate optical fiber |
| 03/16/1993 | US5194714 Method and device for outside plasma deposition of hydroxyl ion-free silica |
| 03/10/1993 | CN1069713A A method of making color quartz tlass tube |
| 03/03/1993 | EP0529647A1 Apparatus for forming porous preform used to fabricate optical fiber |
| 03/03/1993 | EP0529189A2 Method of making fused silica |
| 02/27/1993 | CA2062882A1 Method of making fused silica |
| 02/17/1993 | CN1069009A Continuous electrofusion method for non-hydroxy transparent quartz glass |
| 02/03/1993 | EP0525984A1 Method for manufacturing a silica glass article for use with an excimer laser |
| 01/26/1993 | US5182052 Method of manufacturing tubes and device for carrying out the method |
| 01/07/1993 | EP0521469A1 Casting mold |
| 12/30/1992 | EP0520337A1 Optical fiber and process of producing same |
| 12/29/1992 | US5174801 Manufacture of quartz glass crucible for use in the manufacture of single crystal silicon |
| 12/23/1992 | EP0519521A2 Method for consolidating a green body |
| 12/22/1992 | CA1311615C Method for fabricating articles which include high silica glass bodies and articles formed thereby |
| 12/16/1992 | EP0517955A1 Solution doping of porous preforms |
| 12/15/1992 | CA2057515A1 Solution doping of porous preforms |
| 12/09/1992 | EP0517246A1 Method for producing glass soot deposit |