| |
 |
|
Class Information
Number: 501/74
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 > Less than 40 percent by weight silica > And lead
Description: Compositions which contain lead or a lead compound.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4737475 |
Arsenic-free lead silicate vacuum tube glass |
Apr. 12, 1988 |
| 4734389 |
Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability |
Mar. 29, 1988 |
| 4732875 |
Optical glass |
Mar. 22, 1988 |
| 4721690 |
High PbO-content glasses in the system SiO.sub.2 --PbO--M.sub.2 O with increased chemical stability |
Jan. 26, 1988 |
| 4677081 |
Arsenic-free lead silicate vacuum tube glass |
Jun. 30, 1987 |
| 4609582 |
Dielectric glass in multilayer circuits and thick-film circuits comprising same |
Sep. 2, 1986 |
| 4567151 |
Binder glass of Bi.sub.2 O.sub.3 -SiO.sub.2 -GeO.sub.2 (-PbO optional) admixed with ZnO/ZnO and Bi.sub.2 O.sub.3 |
Jan. 28, 1986 |
| 4562162 |
Glass for multi-focal eyeglass lens |
Dec. 31, 1985 |
| 4532221 |
Decorative enamel for glass-ceramics having low coefficients of thermal expansion |
Jul. 30, 1985 |
| 4520115 |
High absorbance Pb-containing glass for cathode ray tube picture screen |
May. 28, 1985 |
| 4512791 |
Hermetically sealed insulating assembly |
Apr. 23, 1985 |
| 4495298 |
Thallium-containing optical glass |
Jan. 22, 1985 |
| 4483931 |
Lead gallate glasses |
Nov. 20, 1984 |
| 4476233 |
Phosphate optical glass |
Oct. 9, 1984 |
| 4472030 |
Cesium-containing optical glass |
Sep. 18, 1984 |
| 4461926 |
Hermetically sealed insulating assembly |
Jul. 24, 1984 |
| 4395291 |
Process for making non-dusting high lead oxide-low silica additive |
Jul. 26, 1983 |
| 4391915 |
Precision pressed optical components made of glass and glass suitable therefor |
Jul. 5, 1983 |
| 4351906 |
Ophthalmic glasses with high indices of refraction |
Sep. 28, 1982 |
| 4342943 |
P.sub.2 O.sub.5 -V.sub.2 O.sub.5 -PbO glass which reduces arcing in funnel portion of CRT |
Aug. 3, 1982 |
| 4314031 |
Tin-phosphorus oxyfluoride glasses |
Feb. 2, 1982 |
| 4302362 |
Stable pyrochlore resistor compositions |
Nov. 24, 1981 |
| 4288250 |
Glass filter for contrast enhancement in CRT displays |
Sep. 8, 1981 |
| 4277285 |
Sealing glass with high coefficient of absorption for infra-red rays |
Jul. 7, 1981 |
| 4271243 |
Positive active material for an electrical cell |
Jun. 2, 1981 |
| 4261751 |
Optical glasses |
Apr. 14, 1981 |
| 4252567 |
Glasses for eyeglass lenses |
Feb. 24, 1981 |
| 4213787 |
High refractive index glasses of limited specific gravity for distance and near vision spectacle lenses |
Jul. 22, 1980 |
| 4187115 |
Anorthite glass-ceramics |
Feb. 5, 1980 |
| 4131478 |
Sealing glass compositions and method |
Dec. 26, 1978 |
| 4123731 |
Glass for use in ultrasonic delay lines |
Oct. 31, 1978 |
| 4118237 |
Glass-ceramics displaying inherent lubricity |
Oct. 3, 1978 |
| 4108674 |
Phototropic optical glass |
Aug. 22, 1978 |
| 4109054 |
Composites of glass-ceramic-to-metal, seals and method of making same |
Aug. 22, 1978 |
| 4072780 |
Process for making electrical components having dielectric layers comprising particles of a lead oxide-germanium dioxide-silicon dioxide glass and a resin binder therefore |
Feb. 7, 1978 |
| 4049416 |
Method of joining a metal part having a copper surface and a glass part |
Sep. 20, 1977 |
| 4029897 |
Glass seal |
Jun. 14, 1977 |
| 4028121 |
Lead feldspar glass-ceramic bodies |
Jun. 7, 1977 |
| 4026714 |
Phosphate glass compositions |
May. 31, 1977 |
| 4021253 |
Method for manufacturing glass frit |
May. 3, 1977 |
| 4015048 |
Ceramic articles having cordierite coatings |
Mar. 29, 1977 |
| 3977887 |
High dielectric constant ceramics which can be sintered at low temperatures |
Aug. 31, 1976 |
| 3967969 |
High zirconia containing glass ceramic cement |
Jul. 6, 1976 |
| 3956558 |
Ceramic decalcomania and method |
May. 11, 1976 |
| 3953220 |
Refractory celsian glass-ceramics |
Apr. 27, 1976 |
|
|
|
