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| Number | Title | Issue Date |
| 7030050 | Glass ceramic mass and use thereof The invention relates to a glass ceramic mass containing at least one oxide ceramic containing barium, titanium and at least one rare earth metal Rek; and at least one glass material containing at least one oxide with boron, at least one oxide with silicon and at le... | 04/18/2006 |
| 6761755 | Composite membrane and production method therefor A composite membrane is provided having a flexible metallic substrate for separation of hydrogen from gas mixtures, which achieves a separation ratio of hydrogen to nitrogen of greater than about 4,000 at operating temperatures higher than 300° C. The composite mem... | 07/13/2004 |
| 6649134 | Method and apparatus for reducing nitrous oxide A process and a device for reducing the nitrous oxide which is formed during the catalytic combustion of ammonia and oxygen to form nitrogen oxides. A catalyst system including at least one first catalyst mesh element and at least one second catalyst mesh... | 11/18/2003 |
| 6610086 | Radially expandable stent IV A radially expandable support structure is presented, for keeping open lumina within a body, in particular a blood vessel, having a tube-shaped structure that has at least two partial structures, with a wall surface that extends between a first and a seco... | 08/26/2003 |
| 6589903 | Method of synthesizing complexes of platinum and alkenylpolysiloxane, especially of platinum and divinyltetramethyldisiloxane A method for the synthesis of platinum alkenylpolysiloxane complexes, wherein a haloplatinum compound is reacted with at least one alkenylpolysiloxane, in the presence of a platinum complex as autocatalyst and a base, in an organic solvent.... | 07/08/2003 |
| 6525475 | SiO2-glass bulb with at least one current lead-in, process for producing a gas-tight connection between them, and their use in a gas-discharge lamp An SiO2 -glass bulb with at least one current lead-in made of a gas-tight composite material, such that the composite material consists of a noble metal with a melting point >1,700° C. and SiO2 and is at least partially coated with ... | 02/25/2003 |
| 6455020 | Catalyst assembly comprising catalyst meshes and ceramic meshes The use of ceramic meshes is offered for spacing catalyst meshes apart from one another in the production of HCN, especially by the Andrussov process.... | 09/24/2002 |
| 6408929 | Method and apparatus for the production of precision castings by centrifugal casting with controlled solidification In the production of precision castings by centrifugal casting with controlled solidification, a melt is cast under vacuum or shield gas into a pre-heated mold (15) with a central gate (19) and several mold cavities proceeding from the gate toward the out... | 06/25/2002 |
| 6384533 | Metal component and discharge lamp The invention relates to a metal component for discharge lamps, having a support of niobium or tantalum or of alloys based on niobium and/or tantalum, as well as a discharge lamp. The present invention is addressed to the problem of increasing the resista... | 05/07/2002 |
| 6355363 | Support structure A support structure is provided for holding open lumina, the support structure having a stainless steel substrate and a platinum layer forming the surface of the structure. The structure has at least one gold layer arranged between the substrate and the p... | 03/12/2002 |
| 6352634 | Method for producing a lead-free substrate A method for the manufacture of a leadless substrate with a basic body made of copper or copper base alloy, a solder layer applied to at least one portion of the basic body and made of metals belonging to the group of gold, gold alloy, silver, silver allo... | 03/05/2002 |
| 6331200 | Method for preparing gold of high purity A method is proposed for producing gold of high purity from noble metal solutions containing nitrate, with the following steps: a) Nitrate destruction in the noble metal solution, b) Addition of a gold ion reducing acid Fe2+ solution whose H+ ... | 12/18/2001 |
| 6315811 | Method for producing platinum A method is described for the preparation of platinum wherein first an aqueous solution of a hexahalogenoplatinate is passed through a cation exchanger and then the solution obtained, at a temperature T>+30° C. and a pH of 0 to 4, is reduced by a reducin... | 11/13/2001 |
| 6267801 | Method for producing a tubular hydrogen permeation membrane A method for producing a tubular hydrogen permeation membrane comprising: (a) adhering at least one layer containing palladium, at least one palladium alloy, platinum, or at least one platinum alloy to a first surface of a plate having such first surface ... | 07/31/2001 |
| 6264688 | Radially expandable stent V A radially expandable support structure is provided, for keeping open lumina within a body, in particular a blood vessel, having a tube-shaped body that has at least two partial structures, with a wall surface that extends between a first and a second end... | 07/24/2001 |
| 6242106 | Fine wire made of a gold alloy, method for its production, and its use A fine wire made of an alloy of gold which contains 0.6 to 2 weight % of nickel, or an alloy of gold which contains 0.1 to 2 weight % of nickel, 0.0001 to 0.1 weight % of alkaline earth metal and/or rare earth metal, and optionally 0.1 to 1.0 weight % of ... | 06/05/2001 |
| 6129997 | Method for manufacturing a welded shaped body dispersion-hardened platinum material A method is provided for manufacturing a welded shaped body of platinum material dispersion-hardened by finely divided small particles of base metal oxide, especially such a body provided with at least one inside wall, such as a tube. The base metal oxide... | 10/10/2000 |
| 6103025 | Fine wire of gold alloy, method for manufacture thereof and use thereof Fine wires of a gold alloy of 0.05 to 0.95 wt % platinum, palladium or a mixture thereof; 0.001 to 0.1 wt % mischmetal containing at least 50 wt. % of cerium; and 0 to 0.1 wt % of alkaline earth metal. The wire has a favorable strength-to-elongation ratio... | 08/15/2000 |
| 6039920 | Process for making rhenium-containing alloys A process for making iron, cobalt and/or nickel base alloys containing rhenium. The process involves melting together the components that form the alloys, at least one of the components being a rhenium master alloy having 30 to 70 wt % rhenium, then casti... | 03/21/2000 |
