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| Number | Title | Issue Date |
| 7332452 | CaO-SiO-based bioactive glass and sintered calcium phosphate using same A bioactive glass having a composition substantially comprising 30 to 60 mol % of CaO, 40 to 70 mol % of SiO2 and 20 mol % or less of Na2O has low glass transition temperature and/or crystallization temperature, and a sintered calcium phosphate... | 02/19/2008 |
| 7323160 | Method of treating a patient's teeth using fluoride releasing glass composition A method of treating sensitive teeth includes (1) attaching a fluoride releasing glass composition to a person's tooth, and (2) allowing fluoride to be slowly released over time in order to reduce chronic and/or acute tooth sensitivity. A preferred glass composition... | 01/29/2008 |
| 7262144 | Photostructurable body and process for treating a glass and/or a glass-ceramic The invention relates to a photostructurable body, in particular glass or glass-ceramic, in which the glass is a multicomponent glass and/or the glass-ceramic is a multicomponent glass-ceramic, in each case having a positive change in refractive index Δn as a resul... | 08/28/2007 |
| 7217672 | Optical glass suffering little change in refractive index by radiation of light An optical glass wherein an amount of change in refractive index (Δn: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43W, pulse ... | 05/15/2007 |
| 7196027 | Optical glass suffering little change in refractive index by radiation of light An optical glass wherein an amount of change in refractive index (Δn: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43 W, pulse... | 03/27/2007 |
| 7175833 | Glass composition A glass composition having the general empirical formula given below, expressed in weight percent of the element: P: 16–24, F: 5–30, O: 20–40 and at least one of Na, K, Li or Al in an amount up to a total of 40 wt. % and optionally, up to 5 wt. % of boron and/... | 02/13/2007 |
| 7166549 | Antimicrobial, anti-inflammatory, wound-healing and disinfecting glass and use thereof The invention relates to an antimicrobial, anti-inflammatory and disinfecting glass, whereby the glass comprises: 30–95 wt. % SiO2,0–40 wt. % Na 2O, 0–40 wt. % K2O, 0–40 wt. % Li2O, 0–35 wt. % CaO, 0–10 wt. % M... | 01/23/2007 |
| 7144834 | Optical colored glass, its use, and an optical long-pass cutoff filter The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30–75; K2O 5–35; B2O3>4–17; ZnO 5–37; F 0.01–10; CdO 0.1–1, S+Se+Te 0.1–1.5 | 12/05/2006 |
| 7144835 | Aluminum-free borosilicate glass and applications thereof The aluminum-free borosilicate glass has a composition in percent by weight based on oxide content of: SiO2, 65–77; B2O3, 7–20; Li2O, 0–2; Na2O, 0–4; K2O, 3–12; MgO, 0–2; CaO, 0–2; with ... | 12/05/2006 |
| 7140202 | Method for manufacturing optical glasses and colored glasses at low temperatures The invention relates to a method for manufacturing optical glasses and colored glasses with the aid of a fluid phase sintering process from a basic material encompassing at least SiO.sub.2 powder as well as additives for reducing the temperature of the fluid phase ... | 11/28/2006 |
| 6989633 | Alkaline-earth aluminosilicate glass, containing CA and BA, suitable for use in lamp bulbs, and a lamp bulb containing same An alkaline-earth aluminosilicate glass having a composition (in % by weight, based on oxide) of SiO2>55-64; Al2O3 13-18; B2O3 0-5.5; M5O 0-7; CaO 5.5-14; SrO 0-8; BaO 6-17; ZrO2 0-2; CeO | 01/24/2006 |
| 6667259 | Optical colored glass, its use, and an optical long-pass cutoff filter An optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30-75; K2 O 5-35; TiO2 0-5; B2 O3 >4-17; ZnO 5-37; F 0.01-10 MI MIII Y2II | 12/23/2003 |
| 6626986 | Low-temperature-sintering potassium-zinc-silicate glass Potassium-zinc-silicate glasses are described which because of their high chemical stability as well as their optical properties and favorable working properties are suitable in particular as coating or veneering materials for ceramic dental suprastructur... | 09/30/2003 |
| 6503860 | Antimony oxide glass with optical activity According to one aspect of the present invention an optically active glass contains Sb2 O3, up to about 4 mole % of an oxide of a rare earth element, and 0-20 mole % of a metal halide selected from the group consisting of a metal flu... | 01/07/2003 |
| 6420290 | Colorless inorganic glass The object of the present invention is colorless inorganic glasses, as well as products manufactured from said glasses. Said glasses are of the type containing copper halides or copper cadmium halides and having a sharp optical absorption cutoff between 3... | 07/16/2002 |
| 6410467 | Antimony oxide glass with optical activity A glass consisting essentially of antimony oxide. An optically active glass consisting essentially of antimony oxide and up to about 4 mole % of an oxide of a rare earth element. A rare earth-doped, antimony oxide-containing glass including 0-99 mole % Si... | 06/25/2002 |
| 6346493 | Decorative glass enamels The present invention provides a new and improved lead-free and cadmium-free glass enamel composition that displays good flow at traditional glass enamel firing temperatures and upon firing produces an enamel finish that displays no cracking, good chemica... | 02/12/2002 |
| 6338751 | Compositions containing bioactive glass and their use in treating tooth hypersensitivity A novel silica based bioactive glass composition that can be used in conjunction with a delivery agent such as a toothpaste, gel saliva, etc. having a particle size range | 01/15/2002 |
| 6255238 | IR and UV absorbing brown solar glasses, ophthalmic lenses The object of the present invention is brown solar glasses, absorbing UV or IR radiation, as well as solar ophthalmic lenses in said glasses. Said glasses have the following composition, expressed in percentages by weight: SiO2 : 64-71; B2... | 07/03/2001 |
| 6171987 | Cadmium-free and lead-free glass compositions, thick film formulations containing them and uses thereof A glass composition comprising, in mole percent of the total composition: glass-forming compounds in a total amount of 75 to 85%, wherein said glass forming compounds comprise 40 to 65% SiO2, 10 to 20% Bi2 O3 and 0.1 to 3% Al | 01/09/2001 |
| 6171986 | Bioactive sol-gel compositions and methods A process for making bioactive glasses is described including preparing a reaction mixture of reactants capable of forming a sol-gel, aging the reaction mixture, near equilibrium drying a gel resulting from the reaction mixture, and heating the -near equi... | 01/09/2001 |
| 6004894 | Reflective porcelain enamel coating compositions The present invention provides a porcelain enamel coating composition for use in forming a coating composition upon a metal substrate having an infrared reflectivity of at least 50% at 2.5 μ-microns measured with a Perkin Elmer Lambda 19 UV/VIS/NIR spect... | 12/21/1999 |
| 5955388 | Transparent oxyflouride glass-ceramic composition and process of making A transparent class ceramic composition includes an oxide component, a rare earth component, a halide component, and a substantially pure rare earth-halide (e.g., REF3) crystal component. A method for making a transparent oxyfluoride glass incl... | 09/21/1999 |
| 5932501 | High-index glasses that absorb UV radiation The invention relates to glasses which absorb UV radiation and which have the following composition, in wt. %: SiO2 30-52; ZnO 0-8; B2 O3 12-22; PbO 0-2; ZrO2 5-14; Y2 O3 0-15; Al2 ... | 08/03/1999 |
| 5891233 | Use of bioactive silicious glass and new compositions containing bioactive silicious glass A pharmaceutical preparation, including a glass phase which is bioactive silica containing glass in the form of a paste, suspension or solution mixed in a physiologically suitable liquid or bound to a physiologically suitable vehicle, and which preparatio... | 04/06/1999 |
| 5735942 | Compositions containing bioactive glass and their use in treating tooth hypersensitivity A novel silica based bioactive glass composition that can be used in conjunction with a delivery agent such as a toothpaste, gel saliva, etc. having a particle size range | 04/07/1998 |
| 5429996 | Bone grafting material A bone grafting material for use in medicine is glass wool which has the mean diameter of 100 μm or less and whose composition is: SiO2 40-62% (w/w) Na2 O 10-32% (w/w) CaO 10-32% (w/w) P2 O5 0-12% (w/w) CaF2 0... | 07/04/1995 |
| 5382552 | Rare earth-containing alkali silicate frits and their use for the preparation of porcelain enamel coatings with improved cleanability The present invention relates to a rare earth-containing, alkali silicate frit which may be applied to a metal substrate to provide a porcelain enamel coating which has good thermal stability, an acid resistance of A on the PEI scale and improved cleanabi... | 01/17/1995 |
| 5342810 | Zinc-containing, lead- and cadmium-free glass frits, method of their production and their use Zinc-containing, lead- and cadmium-free glass frits with a softening point of less than 510° C. are disclosed. Obligatory components of the glass-frit composition are 31-50 mole % ZnO, 10-44 mole % SiO2, 11-35 mole % B2 O3 | 08/30/1994 |
| 5324691 | Glass composition The invention provides: a glass composition comprising about 20 to about 85% of SiO2, about 2 to about 75% of B2 O3, about 15% or less of Al2 O3, about 30% or less of at least one of Li2 O, ... | 06/28/1994 |
| 5316856 | Silicon nitride base sintered body A sintered body of silicon nitride base solidly formed of interior and surface portions wherein the rate of decrease of the content Si or Si3 N4 and Sialon grains in the surface portion, with respect to that in the interior portion, ... | 05/31/1994 |
| 5296415 | Opacified enamel for direct-on enamelling on unpickled steel plate A CeO2 -containing enamel frit is disclosed which, upon enamelling, produces an opaque enamel coating with excellent adhesion and acid resistance. The frit can be used to enamel an unpickled or lightly pickled steel plate or article.... | 03/22/1994 |
| 5217928 | Hollow glass spheres Hollow glass spheres having average densities of approximately 0.10 grams/cc to approximately 2.0 grams/cc are prepared by heating solid glass particles. The glass spheres consist essentially of the following ingredients in the following amounts stated as... | 06/08/1993 |
| 5108957 | Glass fibers decomposable in a physiological medium Glass compositions useful for forming fibers which are readily able to be degraded in a physiological medium such as that found in a human body. Advantageous compositions formed according to the present invention comprise the following components, set for... | 04/28/1992 |
| 5075263 | Enamel frits for acid-resistant one-coat enamelling on unpickled steels An enamel frit for producing an acid-resistant enamelled steel in a single coating comprising at least about 40% of silicon atoms, 50% of silicon atoms and boron atoms, where the proportion of the boron atoms should not fall below 6.5%, 63% of silicon ato... | 12/24/1991 |
| 5073524 | Radiation-shielding glasses providing safety against electrical discharge and being resistant to discoloration Cerium-doped radiation-shielding glasses in the system of SiO2 -PbO-alkali metal oxides, with a high absorption coefficient for high-energy X-ray and/or gamma- and, respectively, neutron radiation which are resistant to discoloration and exhibi... | 12/17/1991 |
| 4983550 | Hollow glass spheres Hollow glass spheres having average densities of approximately 0.10 grams/cc to approximately 2.0 grams/cc are prepared by heating solid glass particles. The glass spheres consist essentially of the following ingredients in the following amounts state as ... | 01/08/1991 |
| 4980318 | High refractive index photochromic glasses This invention relates to photochromic glasses exhibiting refractive indices greater than 1.59, densities no higher than 3.1 g/cm3, Abbe numbers of at least 40, weight losses no greater than 0.01 mg/cm2 in the A.O. test, and which, w... | 12/25/1990 |
| 4973565 | Fluoroborosilicate glass and clad article There are disclosed fluoroborosilicate glasses that are particularly adapted to being drawn with lead silicate core glasses to produce clad glass fibers useful in forming fiber optic bundles to be incorporated in night vision equipment. The cladding glass... | 11/27/1990 |
| 4970178 | Lead-free glass frit compositions Lead-free glass frit compositions for use in vitreous coatings consisting essentially of Na2 O--ZnO--B2 O3 --SiO2 in appropriate concentrations including molar amounts of at most 17.5 mole percent of B2 | 11/13/1990 |