Patents for C03B 20 - Processes specially adapted for the production of quartz or fused silica articles (2,756)
02/1998
02/19/1998WO1998007053A2 Fused silica having high resistance to optical damage
01/1998
01/29/1998WO1998003440A1 Method of producing quartz glass bodies
01/22/1998DE19628958A1 Verfahren zur Herstellung von Quarzglaskörpern A process for the production of quartz glass bodies
12/1997
12/30/1997US5703191 Method for purifying polyalkylsiloxanes and the resulting products
12/09/1997US5696038 Optics
12/02/1997US5693115 Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient
11/1997
11/26/1997EP0808799A1 Apparatus for doping silica powder
11/26/1997CN1166166A Electric incandescent lamp with a quartz glass lamp vessel
11/21/1997CA2207122A1 Silica powder doping device
11/06/1997DE19710672A1 Quartz glass crucible for silicon single crystal production
11/04/1997US5683483 Manufacturing method and equipment for large, high-purity flat or curved quartz glass plate
10/1997
10/21/1997CA2037102C Method of making fused silica
10/07/1997CA2058183C Process for the production of an optical waveguide preform
10/01/1997EP0797548A1 Electric incandescent lamp with a quartz glass lamp vessel
09/1997
09/30/1997CA2076737C Apparatus for forming porous preform used to fabricate optical fiber
09/25/1997WO1997034841A1 Method of making glass
09/17/1997CN1159590A Improved method for producing plane optical waveguide
09/16/1997US5668067 High purity fused silica having high resistance to optical damage
09/16/1997US5667547 Method for manufacture of quartz glass plates
09/12/1997WO1997032821A1 Method of increasing the initial transmittance of optical glass
09/09/1997US5665139 Mold for production of a quartz glass component
09/09/1997US5665133 Process for production of pure transparent quartz
09/09/1997US5665132 Process for the sintering of hollow cylinders of silicon dioxide soot
08/1997
08/20/1997EP0790213A1 Process for the preparation of silica
08/13/1997CN1156698A Method for producing non-transparent quartz glass material lump
08/13/1997CN1035608C Continuous electrofusion method for non-hydroxy transparent quartz glass
07/1997
07/09/1997CN1153795A Method for purifying polyalkylsiloxanes and resulting products
06/1997
06/26/1997WO1997022553A1 Method and apparatus for forming fused silica by combustion of liquid reactants
06/26/1997CA2233021A1 Method and apparatus for forming fused silica by combustion of liquid reactants
06/18/1997CN1152037A Method for improving zero dislocation yield of single crystals
06/17/1997US5639290 Process for producing a glass preform for an optical fiber and apparatus for the same
05/1997
05/28/1997EP0775672A1 Process for producing a flat, glasslike or ceramic shaped article of structured surface
05/09/1997WO1997016382A1 Process for producing quartz glass optical body for ultraviolet-emitting lasers and quartz glass body produced according to the process
05/02/1997EP0770584A1 Method for producing heat-resistant synthetic quartz glass
04/1997
04/24/1997WO1997014660A1 Electric incandescent lamp with a quartz glass lamp vessel
04/16/1997EP0767761A1 Sintered quartz glass products and methods for making same
04/01/1997US5616159 Method of forming high purity fused silica having high resistance to optical damage
03/1997
03/26/1997EP0687391B1 Light guide for optical fibre amplifiers for the wavelength range around 1300 nm
03/20/1997WO1997010184A1 Boule oscillation patterns for producing fused silica glass
03/20/1997WO1997010182A1 Furnace, method of use, and optical product made by furnace in producing fused silica glass
03/19/1997EP0762996A1 Method of producing structured inorganic layers
03/13/1997WO1997009645A1 A method and apparatus for the construction of photosensitive waveguides
03/13/1997CA2231373A1 A method and apparatus for the construction of photosensitive waveguides
03/05/1997EP0760373A2 Method for purifying polyalkylsiloxanes and the resulting products
03/02/1997CA2181329A1 Method for purifying polyalkylsiloxanes and the resulting products
02/1997
02/26/1997EP0703878B1 Improvements in vitreous silica manufacture
02/18/1997US5604163 Free of bubbles, used in optical fibers, semiconductors
02/12/1997EP0757665A1 Cristobalite-contained silica glass, method of producing same and silica glass jig made of same
01/1997
01/29/1997EP0755900A1 Process and apparatus for producing a quartz glass preform by vapour phase deposition
01/15/1997EP0753605A1 Methods for improving zero dislocation yield of single crystals
01/02/1997EP0751408A1 A method of sintering glass preforms for manufacturing planar optical waveguides
12/1996
12/11/1996EP0747327A1 Method of thermally treating and consolidating silica preforms for reducing laser-induced optical damage in silica
12/04/1996EP0745705A1 Method of manufacturing a double-crucible for the Czochralski growing technique
11/1996
11/12/1996US5573983 Fine silica tube and process for making same
11/12/1996CA2071284C Optical fiber and process of producing same
11/05/1996US5572091 Radiation resistance of quartz glass doped with cerium in the form of oxide
10/1996
10/16/1996EP0737654A1 High purity fused silica having high resistance to optical damage
10/02/1996EP0735006A1 Method for producing silica glass used for photolithography, and silica glass and optical members produced by the method
09/1996
09/06/1996WO1996026908A1 Cristobalite-contained silica glass, method of producing same and silica glass jig made of same
09/04/1996EP0729918A1 Polygonal quartz glass rod and method for making it
08/1996
08/20/1996US5547482 Method of making fused silica articles
06/1996
06/11/1996US5526459 Erbium-doped silica optical fiber preform
05/1996
05/23/1996DE19541372A1 Mfg. quartz crucible for Czochralski semiconductor crystals
05/22/1996CN1122783A Method and apparatus for making quartz glass plate
05/15/1996EP0711736A1 Pure transparent quartz glass and process for production thereof
05/07/1996US5513983 Apparatus for vitrifying soot preform for optical fiber
04/1996
04/24/1996CN1121051A Method for sinterring hollow cylinder of silicon dioxide-carbon ink and fastening device of hollow cylinder
04/03/1996EP0704891A1 Quartz glass jig for heat-treating semiconductor wafers and method for producing same
04/03/1996EP0703878A1 Improvements in vitreous silica manufacture
03/1996
03/20/1996EP0701975A2 Process for sintering hollow tubes of silica soot and support device therefor
03/20/1996CN1119052A Light guide for optical fibre amplifiers for the wavelength range around 1300 nm
01/1996
01/24/1996EP0693461A1 Quartz glass crucible, method for producing the same, and apparatus for producing the same
01/18/1996DE4432806C1 Device for holding quartz-glass hollow cylinders in optical fibre mfr.
01/17/1996EP0692461A1 Synthetic silica glass powder
01/11/1996WO1996000702A1 Sintered quartz glass products and methods for making same
01/11/1996DE19524545A1 Defect-free glass object prodn.
12/1995
12/20/1995EP0687391A1 Light guide for optical fibre amplifiers for the wavelength range around 1300 nm
12/12/1995US5474588 Soot formation process
12/06/1995EP0536312B1 Apparatus and method of forming optical waveguides on metalized substrates
11/1995
11/29/1995EP0684211A1 Process and apparatus for manufacturing quartz glass sheets
11/23/1995WO1995031413A1 Method of producing structured inorganic layers
11/23/1995DE4417405A1 Verfahren zur Herstellung von strukturierten anorganischen Schichten A process for the production of structured inorganic layers
11/21/1995US5468135 Apparatus for manufacture of containers for materials being heated
11/09/1995DE4438134C1 Mould for casting quartz glass or glass containing high amount of silicic acid
11/07/1995US5464462 Melting with cerium aluminate; continuous extrusion
09/1995
09/27/1995EP0673888A1 Synthetic silica glass formed article for optical use and method for preparing the same
09/20/1995CN1108623A Apparatus for vitrifying soot preform for optical fiber
08/1995
08/15/1995US5441681 Process for manufacture of containers for materials being heated
07/1995
07/26/1995CN1105650A Formed body with high silicon dioxide content and preparation of same
07/12/1995CN1029307C Method for manufacturing lightware conductor blank
06/1995
06/20/1995US5425795 Method for pulling-up a porous silica glass preform
06/13/1995US5423898 Method of lowering and raising a optical fiber preform in a sintering furnace
06/01/1995DE4418401C1 Continuous quartz glass plate mfr.
05/1995
05/18/1995WO1995013248A1 Moulded body made of quartz glass and process for the manufacture thereof
05/18/1995DE4440104A1 Quartz glass moulding with transparent surface region
05/17/1995EP0653381A1 Body with high silica content and method for making such a body
03/1995
03/15/1995CN1100065A Method for making fumed silica having a reduced aggregate size and product
03/07/1995US5395413 Method for producing fused silica with low sodium ion contamination level
02/1995
02/22/1995CN1099012A Process for thermal treatment of glass fiber preform
02/01/1995EP0636586A1 Photomask substrate plate of synthetic fused silica glass for photolithography
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