Patents
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)
10/1984
10/23/1984US4478641 Embedding material useful in preparing glass-ceramic products
08/1984
08/21/1984US4467039 Potassium fluorrichterite glass ceramics and method
04/1984
04/18/1984EP0105701A1 Drawing laminated polarizing glasses
03/1984
03/21/1984EP0103554A1 A method and apparatus for varying the refractive index for a surface of an optical lens
02/1984
02/16/1984WO1984000536A1 Glass crystalline material and method for obtention thereof
01/1984
01/18/1984EP0098406A1 Ramped nucleation of solid state phase changes
11/1983
11/29/1983US4417912 Crystallization in furnace having temperature gradient
11/08/1983US4414281 Glass-ceramic articles having metallic surfaces
11/08/1983US4414014 Method of producing a bubble-free vitreous material
08/1983
08/24/1983EP0086656A2 Glass-ceramic articles having metallic surfaces and manufacture thereof
10/1982
10/12/1982CA1133525A1 Fabrication of rotary heat exchangers made of magnesium aluminum silicate glass-ceramic
07/1982
07/20/1982US4340408 High silica glass
04/1982
04/27/1982CA1122412A1 Ultra-high-index glass microspheres and products made therefrom
04/06/1982CA1121391A1 Basalt glass-ceramic fibers and method of production
01/1982
01/19/1982US4311529 Tinted opal glass
12/1981
12/08/1981US4304584 Method for making polarizing glasses by extrusion
08/1981
08/04/1981US4282022 Elongating the silver or silver halide particles
06/1981
06/23/1981US4275102 Ferroelectric crystals in a vitreous matrix
02/1981
02/03/1981US4248925 Encapsulation in glass and glass-ceramic materials
02/03/1981US4248297 Glass-ceramic article and method of making same
01/1981
01/13/1981US4244722 Method for manufacturing thin and flexible ribbon of dielectric material having high dielectric constant
11/1980
11/25/1980US4235617 Fabrication of rotary heat exchangers made of magnesium aluminum silicate glass-ceramic
11/11/1980US4233169 Porous magnetic glass structure
11/04/1980US4231778 Method of strengthening glass articles
11/04/1980US4231776 Method for manufacturing a panel of anisotropic ceramic glass
10/1980
10/14/1980US4227910 Apparatus for supporting lenses during heat treatment
09/1980
09/16/1980US4222760 Preparation of oxynitride glass-ceramics
08/1980
08/26/1980US4219344 Method of producing manganese cordiertie glass-ceramics
07/1980
07/15/1980US4212678 Oxides of lithium, aluminum, silicon, magnesium, zinc, and titanium
07/08/1980US4211820 Brown glass-ceramic articles
05/1980
05/20/1980US4204027 Photochromic sheet glass process
05/13/1980US4202660 Glass-ceramic article and method of making same
05/13/1980CA1077273A1 Crystallized glass article and a method for producing the same
05/06/1980US4201559 Heat treatment
04/1980
04/22/1980US4199336 Method for making basalt glass ceramic fibers
04/08/1980US4197105 Method of stain-decorating glass-ceramics
03/1980
03/11/1980US4192666 Palladium-containing stain; two-step heat treatment
03/11/1980US4192665 Rapidly crystallized beta-spodumene glass-ceramic materials
03/11/1980US4192576 Bismuth oxide-titanium oxide
03/04/1980US4191583 Magnesium oxide
02/1980
02/12/1980CA1071410A1 Method for the production of bubble-free objects of quartz glass by drawing
12/1979
12/18/1979US4179596 Method for processing fiberoptic electronic components of electronic vacuum devices
10/1979
10/30/1979US4172921 Window or room closure
09/1979
09/25/1979US4169182 Layer of copoer or copper oxide on glass fiber
09/04/1979CA1061618A1 Photochromic gradient lenses
04/1979
04/17/1979US4149868 Heat exchanging
02/1979
02/20/1979US4140645 Glasses and glass-ceramics suitable for induction heating
12/1978
12/12/1978CA1044223A1 Recuperator structures and method and apparatus for making same
11/1978
11/14/1978US4125388 Heating glass soot preform while passing drying agent through it
10/1978
10/03/1978US4118237 Glass-ceramics displaying inherent lubricity
09/1978
09/05/1978US4111520 Fabrication of optical waveguides
07/1978
07/25/1978US4102666 Method of surface crystallizing quartz
05/1978
05/23/1978US4090776 Fabrication of optical waveguides
04/1978
04/25/1978US4086074 Leaching
03/1978
03/21/1978US4080188 Durable substrates having porous antireflection coatings
02/1978
02/28/1978US4076513 Method for making transverse tube recuperator
02/07/1978US4072490 Apparatus and process for producing a gradient photochromic ophthalmic lens
11/1977
11/29/1977US4060401 Siliceous
10/1977
10/18/1977US4054435 Method of crystallizing a two layer glass article
08/1977
08/16/1977US4042362 Production of glass-ceramic articles
06/1977
06/28/1977US4032315 Method for the production of quartz-glass objects by drawing
05/1977
05/03/1977US4020896 Ceramic structural material
04/1977
04/12/1977US4017293 Heat treating and sagging lens blanks
02/1977
02/08/1977US4007048 Dark red transparent refractory glass
10/1976
10/05/1976US3984252 Fireproof glass windowpanes
08/1976
08/31/1976US3977857 Metal bonding glass-ceramic compositions having improved hardness
06/1976
06/01/1976US3960533 Lamp having crystallizable light diffusing envelope
05/1976
05/11/1976US3955989 Crystallized glass article having a surface pattern
04/1976
04/20/1976US3951670 Cristobalite suppression in high-silica Li2 O-Al2 O-SiO2 devitrified glass frits
04/06/1976US3948317 Structural reinforced glass-ceramic matrix products and method
02/1976
02/17/1976US3938978 Method of making crystallized glass
01/1976
01/06/1976US3931438 Differential densification strengthening of glass-ceramics
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