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Class Information
Number: 501/64
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 yttrium or rare earth (i.e., elements with atomic numbers 39 or 57-71)
Description: Compositions additionally containing yttrium or a rare earth in elemental or compound form.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4737316 |
Purification of contaminated liquid |
Apr. 12, 1988 |
| 4734388 |
Glass for cathode ray tube faceplates |
Mar. 29, 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 |
| 4684847 |
Glass composition suitable for use in a fluorescent lamp, tube and lamp envelope manufactured from said glass composition, and fluorescent lamp having a lamp envelope manufactured from said gl |
Aug. 4, 1987 |
| 4677081 |
Arsenic-free lead silicate vacuum tube glass |
Jun. 30, 1987 |
| 4666871 |
Glass composition suitable for use in a fluorescent lamp, tube and lamp envelope manufactured from said glass composition, and fluorescent lamp having a lamp envelope manufactured from said gl |
May. 19, 1987 |
| 4608352 |
Neutron-absorbent glasses containing gadolinium and process for their preparation |
Aug. 26, 1986 |
| 4599319 |
PbO-free glasses for cathode ray tubes having a high protective effect against X-rays while simultaneously having good resistance to acid and stability to radiation |
Jul. 8, 1986 |
| 4591455 |
Purification of contaminated liquid |
May. 27, 1986 |
| 4585972 |
Discharge lamp arc tubes |
Apr. 29, 1986 |
| RE32107 |
Carbon-containing monolithic glasses and ceramics prepared by a sol-gel process |
Apr. 8, 1986 |
| 4562161 |
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 |
Dec. 31, 1985 |
| 4554259 |
Low expansion, alkali-free borosilicate glass suitable for photomask applications |
Nov. 19, 1985 |
| 4542105 |
Glass composition for covering semiconductor element |
Sep. 17, 1985 |
| 4540672 |
Glasses of low density and high index of refraction for ophthalmic and optical applications |
Sep. 10, 1985 |
| 4530909 |
Aluminosilicate glass containing Y.sub.2 O.sub.3 concentrate and ZrO.sub.2 |
Jul. 23, 1985 |
| 4526874 |
Optical light weight glass with a refractive index of >1.70, an Abbe index of >22 and a density of <3.5 G/CM.sup.3 |
Jul. 2, 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 |
| 4495298 |
Thallium-containing optical glass |
Jan. 22, 1985 |
| 4473653 |
Ballistic-resistant glass-ceramic and method of preparation |
Sep. 25, 1984 |
| 4472030 |
Cesium-containing optical glass |
Sep. 18, 1984 |
| 4454446 |
Cathode ray tube for a light source |
Jun. 12, 1984 |
| 4446241 |
Lead-free and cadmium-free glass frit compositions for glazing, enameling and decorating |
May. 1, 1984 |
| 4439008 |
Optical fiber of the graded index type and method of producing same |
Mar. 27, 1984 |
| 4438211 |
Optical and ophthalmic glass with refractive indices nd>1.58, Abbe numbers>45 and densities<2.75 g/cm.sup.3 |
Mar. 20, 1984 |
| 4437192 |
Implants of biologically active glass or glass ceramic containing titania |
Mar. 20, 1984 |
| 4429007 |
Electrical wire insulation and electromagnetic coil |
Jan. 31, 1984 |
| 4412963 |
Method of producing discharge lamp arc tubes |
Nov. 1, 1983 |
| 4406681 |
Method of making manganese sensitized neodymium fluorescent glasses |
Sep. 27, 1983 |
| 4396720 |
Transparent glass-ceramics containing mullite |
Aug. 2, 1983 |
| 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 |
| 4366253 |
Phosphate glass compositions, and glass-ceramic materials, and methods of making the same |
Dec. 28, 1982 |
| 4358542 |
Photochromic glass suitable for microsheet and simultaneous heat treatment and shaping |
Nov. 9, 1982 |
| 4345037 |
Alkali resistant glass fibres for cement reinforcement |
Aug. 17, 1982 |
| 4345036 |
Optical glass fibres and method of forming such fibres |
Aug. 17, 1982 |
| 4337410 |
Cathode-ray tube face-plate |
Jun. 29, 1982 |
| 4331770 |
Low liquidus glasses for television tube faceplates |
May. 25, 1982 |
| 4330628 |
Alkali-resistant glass fibres |
May. 18, 1982 |
| 4314909 |
Highly refractory glass-ceramics suitable for incorporating radioactive wastes |
Feb. 9, 1982 |
| 4311529 |
Tinted opal glass |
Jan. 19, 1982 |
| 4298388 |
Alkali-free sealing glasses for molybdenum |
Nov. 3, 1981 |
| 4288250 |
Glass filter for contrast enhancement in CRT displays |
Sep. 8, 1981 |
| 4284686 |
Spectacle lenses to reduce discomfort from aphakia and certain eye diseases |
Aug. 18, 1981 |
| 4265667 |
Step-type light-transmitting body having excellent water resistance |
May. 5, 1981 |
| 4257811 |
Solarization and irradiation resistant optical glasses |
Mar. 24, 1981 |
| 4224177 |
Fixation of radioactive materials in a glass matrix |
Sep. 23, 1980 |
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