| Patents for C03B 20 - Processes specially adapted for the production of quartz or fused silica articles (2,756) |
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| 10/10/1989 | US4872895 Method for fabricating articles which include high silica glass bodies |
| 10/03/1989 | US4871695 Process for the production of glass |
| 09/26/1989 | CA1260684A1 Optical waveguide manufacture |
| 09/19/1989 | US4867774 Method of producing an elongated glass body, particularly a preform for optical waveguides |
| 08/15/1989 | US4857092 Method of densifying a preformed porous body of a material the main constituent of which is SiO2 |
| 08/08/1989 | US4854956 Method of manufacturing optical fibres having a core and a cladding of glass applying the rod-in-tube technique |
| 08/02/1989 | EP0326037A2 Selective volitization method for preparing fiber optics |
| 08/01/1989 | US4853198 Heating amorphous silica and alkali metal solution |
| 07/26/1989 | EP0325227A2 Method of heating a quartz glass tube |
| 07/18/1989 | US4848998 Selective volitization method for preparing fiber optics |
| 07/12/1989 | EP0222777B1 Unit intended to restore the initial cleanness conditions in a quartz tube used as reaction chamber for fabricating integrated circuits |
| 07/12/1989 | EP0153785B1 Process for producing tubular bodies and device for carrying out the process |
| 07/11/1989 | US4846867 Method for producing glass preform for optical fiber |
| 07/05/1989 | EP0322881A2 Method of producing uniform silica glass block |
| 06/27/1989 | US4842628 Method of verifying a porous article made out of glass soot and furnace for carrying out the method |
| 06/27/1989 | US4842627 Etching surface of glass rod(core) before surrounding it with molten glass jacket |
| 06/15/1989 | DE3741393A1 Process for producing shaped bodies comprising highly pure SiO2 |
| 06/13/1989 | US4838916 Applying stresses, drawing core-cladding assembly |
| 05/31/1989 | EP0318112A2 Apparatus made of quartz glass |
| 05/30/1989 | US4834786 Method of manufacturing a preform for asymmetrical optical fiber |
| 05/23/1989 | US4832720 Insertion of glass rods in bores, heating, drawing |
| 05/09/1989 | US4828595 Process for the production of glass |
| 05/09/1989 | US4828594 Process for the production of glass |
| 05/09/1989 | US4828593 Quartz, silica raw material |
| 05/02/1989 | US4826521 Hydrolysis of silicon tetrachloride |
| 04/26/1989 | CN1032533A Production method suitabla for open-tube gallium diffusion quartz tube |
| 04/11/1989 | US4820321 Method and apparatus for fabricating an expanded beam cylindrically terminated optical fiber taper |
| 03/28/1989 | US4816051 Method of manufacturing glass bodies by means of extrusion |
| 03/21/1989 | US4814105 Mercury lamps |
| 03/21/1989 | US4813989 Apparatus for fabricating optical fiber preform |
| 03/14/1989 | US4812154 Method for producing glass preform for optical fiber |
| 03/14/1989 | CA1251044A1 Fluorine doped optical waveguide |
| 02/15/1989 | EP0303424A2 Method and apparatus for fabricating an expanded beam cylindrically terminated optical fiber taper |
| 02/15/1989 | CN1031067A Production method and apparatus of thick-walled transparent quartz-glass tube |
| 01/31/1989 | US4801415 Simultaneously compacting and consolidating pieces of different thickness |
| 01/11/1989 | EP0165253B1 Fabrication of high-silica glass article |
| 01/10/1989 | US4797082 Apparatus for forming shaped pieces of insulation |
| 12/27/1988 | US4793843 Passing oxygen and fluorocarbon etchant through hollow glass fiber while collapsing central duct |
| 12/27/1988 | US4793842 Heating glass red as core in tube as cladding material, adding silicon, oxygen, halogen containing compounds, fusing |
| 12/06/1988 | US4789389 Sintering dried gel formed from organosilicon compound; casting, drying, sintering, isostatic pressing |
| 11/23/1988 | EP0292179A2 Method for producing ultra-high purity, optical quality, glass articles |
| 10/18/1988 | US4778256 Impregnating porous transparent base with photo-decomposable compounds; radiation of decreasing intensity |
| 10/12/1988 | EP0286097A2 Method of forming silicon dioxide glass films |
| 09/28/1988 | EP0283933A2 Process for producing unsintered cristobalite silica |
| 09/28/1988 | EP0283903A2 Method of manufacturing quartz double crucible and method of manufacturing a silicon monocrystalline rod |
| 09/20/1988 | US4772303 Process for fabricating optical fiber |
| 09/07/1988 | EP0281282A1 Fabrication of high-silica glass article |
| 08/30/1988 | US4767435 Process for producing transparent glass product having refractive index gradient |
| 08/17/1988 | CN86103379B Method of producing an elongated glass body particularly a preform for optical waveguides |
| 08/03/1988 | EP0276311A1 Method for manufacturing basic material for optical fiber |
| 07/26/1988 | US4759787 Applying a polarization potential across the wall to cause impurity ions to migrate away from inner wall |
| 07/12/1988 | US4756322 Means for restoring the initial cleanness conditions in a quartz tube used as a reaction chamber for the production of integrated circuits |
| 07/05/1988 | CA1238820A1 Fabrication of high-silica glass article |
| 06/28/1988 | CA1238656A1 Glass for tungsten-halogen lamps |
| 06/22/1988 | CN87107444A Method for fabricating articles which include high silica glass bodies and articles formed thereby |
| 06/21/1988 | CA1238247A1 Method for producing glass preform for optical fiber |
| 06/15/1988 | EP0271281A2 Method for fabricating articles which include high silica glass bodies and articles formed thereby |
| 06/07/1988 | US4749395 Converting organosilicon polymers into glass by curing, oxidation, drying, sintering |
| 05/31/1988 | US4747863 Method of manufacturing glass bodies |
| 05/24/1988 | US4746345 Externally heating rotating preform until it collapses |
| 05/24/1988 | CA1237047A1 Gas supplying apparatus |
| 05/24/1988 | CA1236966A1 Method of manufacturing a solid preform for drawing optical fibres |
| 05/03/1988 | US4741748 Heating oven for preparing optical waveguide fibers |
| 04/27/1988 | EP0265024A1 Method for making a shaped body from ceramics or glass |
| 04/27/1988 | EP0265023A2 Process and apparatus for producing glass shapes by extrusion moulding |
| 04/27/1988 | EP0264996A1 Method of preparing a quartz glass activated by bivalent europium, luminescent quartz glass obtained by such a method and luminescent screen provided with such a luminescent quartz glass |
| 04/12/1988 | US4737179 Forming glass rod by vapor axial deposition; stretching, inserting into glass tube; fusing |
| 03/09/1988 | EP0258457A1 Process for manufacturing glass |
| 03/09/1988 | EP0258456A1 Process for manufacturing glass |
| 03/09/1988 | EP0258455A1 Process for manufacturing glass |
| 03/01/1988 | US4728351 Infrared radiation of selective wavelength |
| 02/23/1988 | US4726828 Molding inner layer from thixotropic suspension of powdered glass in water; dense outer layer; crosslinking |
| 02/17/1988 | CN87103085A Method of and apparatus for overcladding an optical preform rod |
| 02/03/1988 | CN87105714A Method of mfg fiber preform for single-mode fibers |
| 01/27/1988 | CN87104844A Method of mfg. optical fibres having a core and a cladding of glass applying the rod-in-tube technique |
| 01/20/1988 | EP0253427A1 Method for making optical fibres with a core and an envelope from glass using the rod-in-tube method |
| 01/07/1988 | EP0251312A2 Method of manufacturing fiber preform for single-mode fibers |
| 12/17/1987 | WO1987007593A1 Method for manufacturing basic material for optical fiber |
| 12/02/1987 | EP0247322A2 Process for manufacturing a preform for drawing glass optical fibres |
| 11/04/1987 | EP0244135A1 Method of and apparatus for overcladding an optical preform rod |
| 09/22/1987 | US4695305 Method of for manufacturing glass bodies |
| 09/11/1987 | WO1987005287A1 Process for manufacturing glass |
| 09/11/1987 | WO1987005286A1 Process for manufacturing glass |
| 09/11/1987 | WO1987005285A1 Process for manufacturing glass |
| 09/09/1987 | EP0235624A1 Organometallic-derived cordierite and other compounds comprising oxides of silicon |
| 09/02/1987 | EP0234947A1 Method of forming a preform |
| 08/26/1987 | EP0233732A1 Lithium-aluminum-silicate glass and glass-ceramic powders and methods of making them |
| 08/25/1987 | US4689066 Method for manufacturing glass bodies |
| 08/19/1987 | EP0232815A1 Method and apparatus for producing glass preform for optical fiber |
| 08/12/1987 | EP0232077A2 Heating oven for preparing optical waveguide fibers |
| 08/11/1987 | US4685946 Method for the manufacture of glass bodies |
| 08/04/1987 | US4684387 Suspension separated by pressure difference and deposited on porous membrane |
| 08/04/1987 | US4684386 Method for the manufacture of glass bodies |
| 08/04/1987 | US4684385 Method for the manufacture of glass bodies |
| 07/28/1987 | US4682995 Silica, thixotropy, low viscosity, sintering |
| 07/21/1987 | US4681614 Method of manufacturing glass bodies |
| 07/14/1987 | US4680047 Optical waveguides |
| 07/08/1987 | EP0227846A1 Manufacture of optical fibre preform |
| 06/30/1987 | US4676814 Method for the continuous building of a hollow cylindrical soot body having no internal support |
| 06/09/1987 | CA1222660A1 Method for producing an aerosol stream and its use |