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Class Information
Number: 501/60
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 lead
Description: Compositions additionally containing lead or a lead compound.










Sub-classes under this class:

Class Number Class Name Patents
501/62 And aluminum 152
501/61 And boron 123


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4677081 Arsenic-free lead silicate vacuum tube glass Jun. 30, 1987
4612292 Lead/alkaline earth metal silicates and vitrescible compositions comprised thereof Sep. 16, 1986
4591455 Purification of contaminated liquid May. 27, 1986
4562162 Glass for multi-focal eyeglass lens Dec. 31, 1985
4521524 Contrast enhancement filter for color CRT display devices Jun. 4, 1985
4520115 High absorbance Pb-containing glass for cathode ray tube picture screen May. 28, 1985
4503158 Double or mixed silicates of alkali metal and other glass modifier metal(s) used to prepare glass compositions Mar. 5, 1985
4495299 Thallium-containing optical glass composition Jan. 22, 1985
4495298 Thallium-containing optical glass Jan. 22, 1985
4390637 X-Ray absorbing glass for a color cathode ray tube having a controlled chromaticity value and a selective light absorption Jun. 28, 1983
4376829 Glass for use in monochromatic colored light emitting cathode ray tubes Mar. 15, 1983
4366252 Fluorine-free, zirconia-free, X-ray absorbing silica based glass, containing oxides of lead, barium and strontium plus oxides of calcium, magnesium, sodium, potassium, cerium, titanium, arseni Dec. 28, 1982
4347326 Foamable glass composition and glass foam Aug. 31, 1982
4337410 Cathode-ray tube face-plate Jun. 29, 1982
4288250 Glass filter for contrast enhancement in CRT displays Sep. 8, 1981
4282021 Method of making photochromic glasses suitable for simultaneous heat treatment and shaping Aug. 4, 1981
4240836 Colored photochromic glasses and method Dec. 23, 1980
4212678 Rapidly crystallized beta-spodumene glass-ceramic materials Jul. 15, 1980
4200467 Zirconium-containing borosilicate glasses Apr. 29, 1980
4183620 Joint doped porous glass article with high modifier concentrations Jan. 15, 1980
4174490 Cathode-ray tube Nov. 13, 1979
4156755 Lithium containing ion exchange strengthened glass May. 29, 1979
4123731 Glass for use in ultrasonic delay lines Oct. 31, 1978
4110097 Method for the manufacture of glass Aug. 29, 1978
4101709 Low modules glass fibers and laminate reinforced with same Jul. 18, 1978
4099978 High refractive index hydrated glasses Jul. 11, 1978
4099834 Low loss glass suitable for optical fiber Jul. 11, 1978
4098596 Method for preparing optical articles from hydrated glasses Jul. 4, 1978
4093469 Molded glass articles having bulk homogeneity and optical quality surface Jun. 6, 1978
4073654 Optical articles prepared from hydrated glasses Feb. 14, 1978
4046545 Method for making molded glass articles having bulk homogeneity and optical quality surface Sep. 6, 1977
4021253 Method for manufacturing glass frit May. 3, 1977
4002482 Glass compositions suitable for incorporation into concrete Jan. 11, 1977
3987330 Zirconia containing glass compositions for cathode ray tubes Oct. 19, 1976
3956558 Ceramic decalcomania and method May. 11, 1976
3949335 Reed switch construction Apr. 6, 1976
3940277 Glass-ceramics containing fibers exhibiting thermoplastic properties Feb. 24, 1976

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