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Class Information
Number: 501/66
Name: Compositions: ceramic > Ceramic compositions > Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions > Silica containing > 40 percent - 90 percent by weight silica > And boron > And aluminum
Description: Compositions additionally containing aluminum or an aluminum compound.


Sub-classes under this class:

Class Number Class Name Patents
501/67 And zinc or zirconium 366


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
5024975 Crystallizable, low dielectric constant, low dielectric loss composition Jun. 18, 1991
5017521 Borosilicate glass compositions incorporating cerium oxide May. 21, 1991
5013362 Fluorine-free superopaque enamel frits May. 7, 1991
5008176 Information recording medium having a glass substrate Apr. 16, 1991
5004707 Lightwave guide produced from special substrate glasses by ion exchange against CS.sup.+ ions Apr. 2, 1991
4994415 SiO.sub.2 -Al.sub.2 O.sub.3 -BaO glass substrates with improved chemical resistance for use in display panels and others having thin films Feb. 19, 1991
4985380 Method of making thin refractory flakes Jan. 15, 1991
4983550 Hollow glass spheres Jan. 8, 1991
4952530 Dental composite material and process Aug. 28, 1990
4952531 Sealing glass for matched sealing of copper and copper alloys Aug. 28, 1990
4944784 Process for preparing a borosilicate glass Jul. 31, 1990
4940674 High strength, haze-free, transparent glass-ceramics Jul. 10, 1990
4933307 Silica-rich porous substrates with reduced tendencies for breaking or cracking Jun. 12, 1990
4931354 Multilayer printed circuit board Jun. 5, 1990
4925814 Ultraviolet transmitting glasses for EPROM windows May. 15, 1990
4917958 Metal coated ceramic composition Apr. 17, 1990
4902650 Gradient-index glass Feb. 20, 1990
4870034 Borosilicate glass Sep. 26, 1989
4859637 Lead-free U.V. absorbing glass Aug. 22, 1989
4855260 Glasses exhibiting low thermal coefficients of elasticity Aug. 8, 1989
4849380 Dielectric composition Jul. 18, 1989
4849379 Dielectric composition Jul. 18, 1989
4833104 Glass-ceramic substrates for electronic packaging May. 23, 1989
4824806 Glass fibers having low dielectric constant Apr. 25, 1989
4824808 Substrate glass for liquid crystal displays Apr. 25, 1989
4818648 Optical memory element Apr. 4, 1989
4812422 Dielectric paste and method of manufacturing the paste Mar. 14, 1989
4812423 Optical light weight glass Mar. 14, 1989
4797376 Sol-gel method for making gradient-index glass Jan. 10, 1989
4792535 UV-transmitting glasses Dec. 20, 1988
4788165 Copper-exuding, boroaluminosilicate glasses Nov. 29, 1988
4776869 Method for preparing substrates for optical sensors Oct. 11, 1988
4775592 Fluoroaluminosilicate glass powder for dental glass ionomer cement Oct. 4, 1988
4771019 Low boron glass fibers with low index of refraction Sep. 13, 1988
4767672 Process for preparation of glazed ceramic substrate and glazing composition used therefor Aug. 30, 1988
4764486 Sintered glass-powder product Aug. 16, 1988
4762809 Low dielectric fiber glass composition having improved water resistance and heat resistance Aug. 9, 1988
4755490 Low firing temperature ceramic materials Jul. 5, 1988
4749665 Low temperature fired ceramics Jun. 7, 1988
4719186 Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3 Jan. 12, 1988
4694219 Discharge lamp arc tubes Sep. 15, 1987
4666867 Hydrogen-containing glass microfoams and gas-ceramics May. 19, 1987
4665039 Porous glass, process for its production and glass material used for the production May. 12, 1987
4657875 Articles of porous glass and process for preparing the same Apr. 14, 1987
4628038 Water resistant glass fibers Dec. 9, 1986
4598167 Multilayered ceramic circuit board Jul. 1, 1986
4593006 Composition for multilayer printed wiring board Jun. 3, 1986
4585972 Discharge lamp arc tubes Apr. 29, 1986
4582748 Glass compositions having low expansion and dielectric constants Apr. 15, 1986
4565791 Glasses for ophthalmic applications Jan. 21, 1986

1 2 3 4 5 6 7 8 9 10 11


 
 
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