Patents for C03B 20 - Processes specially adapted for the production of quartz or fused silica articles (2,756)
11/1983
11/22/1983US4416680 Method of making quartz glass crucibles, and apparatus carrying out the method
11/15/1983CA1156816A1 Process for manufacturing si useful for semiconductor components from quartz sand
11/08/1983US4414014 Method of producing a bubble-free vitreous material
09/1983
09/27/1983US4406680 Flame oxidation
09/06/1983US4403031 Method for providing optical patterns in glass
08/1983
08/17/1983EP0086132A1 Method of making doped silica glass for processing a preform for an optical fibre
08/09/1983US4397897 Bell of translucent fused silica for the precipitation of polysilicon
07/1983
07/27/1983EP0084438A2 Method of forming glass or ceramic article
06/1983
06/14/1983CA1147960A1 Method of producing optical waveguide
03/1983
03/22/1983US4377405 Method for the production of flat, transparent vitreous silica slabs of low bubble content
01/1983
01/18/1983US4368846 Melting burner made of vitreous silica for the production of massive vitreous silica
01/05/1983EP0068707A1 Method for providing optical patterns in glass
11/1982
11/09/1982US4358306 Compression molding under a helium atmosphere in a graphite mold
11/03/1982EP0063989A1 Process for making luminescent glass layers, application to the making of devices provided with these layers and to the making of photoscintillators
10/1982
10/19/1982CA1133769A1 Method of producing microlenses and a coupling element having a microlens produced in accordance with this method
09/1982
09/07/1982CA1131029A1 Method of fabricating optical fiber preforms
07/1982
07/20/1982US4340627 Winding threads to form coil; then sintering
06/1982
06/22/1982US4336048 Method of producing doped quartz glass
06/22/1982US4335934 Single mode fibre and method of making
06/22/1982CA1126066A1 Method of drawing glass optical waveguides
04/1982
04/27/1982US4326869 Method of producing optical waveguide
03/1982
03/02/1982US4317668 Method for producing silica glass
02/1982
02/24/1982EP0046281A1 Process for making glass with a preselected refraction index profile having the form of a gradient index profile and a process for making a glass preform for drawing optical fibres for use in the communications industry
11/1981
11/04/1981EP0039179A2 Improvements in or relating to porous glass
10/1981
10/20/1981US4296143 Method of producing microlenses
10/13/1981US4294811 Process for manufacturing Si useful for semiconductor components from quartz sand
07/1981
07/29/1981EP0032594A2 Method for producing silica glass
05/1981
05/27/1981EP0029157A1 Process for producing silicon for use in semiconductor components from quartz sand and its use in solar cells
05/06/1981EP0028155A1 Single mode optical fibre and method of making it
05/05/1981US4265649 Method for preparing a preform for optical waveguides
04/1981
04/28/1981US4264564 Process for the manufacture of high purity silicic acid
04/28/1981US4264347 Rod-in-tube method; flowing oxygen and treating agent through at high temperature, collapsing tube
01/1981
01/06/1981US4243422 Granular quartz glass product
11/1980
11/26/1980EP0019327A1 Method of producing doped quartz glass, and objects produced therefrom
11/04/1980US4231777 Methods of and apparatus for heating a glass tube
10/1980
10/15/1980EP0017296A2 Process for making microlenses and coupling element comprising a microlens prepared by this process
10/02/1980WO1980002020A1 Methods and apparatus for heating a glass tube
09/1980
09/02/1980CA1084710A1 Low temperature manufacture of glass
04/1980
04/22/1980US4199337 Method of fabricating high strength optical preforms
02/1980
02/12/1980CA1071410A1 Method for the production of bubble-free objects of quartz glass by drawing
02/12/1980CA1071409A1 Method for the production of bubble-free objects of quartz glass by drawing
10/1979
10/02/1979CA1063352A1 Method for producing an impregnated waveguide
06/1979
06/12/1979US4157906 Method of drawing glass optical waveguides
05/1979
05/22/1979US4155733 Optical fibre manufacture
02/1979
02/06/1979CA1047849A1 Method of making optical waveguides
11/1978
11/28/1978CA1043185A1 Flame hydrolysis mandrel and method of using
07/1978
07/04/1978US4098595 Process for the production of granular quartz glass
08/1977
08/16/1977US4042359 Alkali borosilicate glass, silicon dioxide, boron oxide
07/1977
07/26/1977US4038370 From high-purity silane
06/1977
06/28/1977US4032315 Method for the production of quartz-glass objects by drawing
04/1977
04/26/1977US4019645 Crucible of fused vitreous silica
04/19/1977US4018615 Refractory material containing fused silica and crystalline phase silica
03/1977
03/22/1977US4013436 Method for the production of objects of quartz-glass by drawing
03/01/1977US4010022 Apparatus for making fused silica tubing
01/1976
01/20/1976US3933454 Method of making optical waveguides
01/20/1976US3933453 Flame hydrolysis mandrel and method of using
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