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| Number | Title | Issue Date |
| 4622115 | Photochemical process using a waveguide reaction cell A process for inducing photochemical reactions using laser radiation employs a dielectric waveguide cell formed by a capillary passage communicating at its ends with a gas inlet chamber and a gas outlet chamber, each chamber being configured to encompass ... | 11/11/1986 |
| 4604274 | Photochemical process for the preparation of disilane Silane is efficiently converted to disilane by irradiation at pressures in excess of about 75 torr using pulsed coherent light having a wavelength in the range from about 10.2 to about 11.2 μm.... | 08/05/1986 |
| 4595579 | Process for initiating a reaction for the manufacture of synthetic hydrochloric acid The invention relates to a process for initiating a reaction for the manufacture of synthetic hydrochloric acid, wherein two reactive gaseous chamical compounds, chlorine and hydrogen, are brought together. The molecules of at least one of said compounds ... | 06/17/1986 |
| 4568565 | Light induced chemical vapor deposition of conductive titanium silicide films Conductive titanium silicide-containing films and composites comprising substrates and the film are produced by light induced chemical vapor deposition. The process eliminates the need to anneal the silicide film in order to produce a conductive film and ... | 02/04/1986 |
| 4558017 | Light induced production of ultrafine powders comprising metal silicide powder and silicon A method of producing ultrafine powders comprising metal silicide powder and the products produced by the method are disclosed. The ultrafine powders comprising metal silicide powders are ideally suited to form stable colloidal suspensions which are used ... | 12/10/1985 |
| 4536252 | Laser-induced production of nitrosyl fluoride for etching of semiconductor surfaces Nitrosyl fluoride is prepared by laser-induced method wherein the nitrosyl luoride is produced in situ or in close proximity to where it is used to etch semiconductor surfaces. A reaction mixture of a catalyst compound and a fluoro compound, wherein the ca... | 08/20/1985 |
| 4461686 | Sequential multiphoton excitation method Efficient multiphoton excitation is accomplished by sequentially exciting a polyatomic molecule with one or more wavelengths of infrared laser radiation. Preferably, the delay between successive excitations is longer than the rotational but shorter than t... | 07/24/1984 |
| 4447407 | Perfluoroammonium salts fluoroxenon anions New energetic salts NF4 XeF7 and (NF4)2 XeF8 are prepared by reacting NH4 HF2 with XeF6 and exposing NF4 XeF7 to blue 4880 Å laser light.... | 05/08/1984 |
| 4428913 | Perfluoroammonium salt of heptafluoroxenon anion New energetic salts NF4 XeF7 and (NF4)2 XeF8 are prepared by reacting NF4 HF2 with XeF6 and exposing NF4 XeF7 to blue 4880Å laser light.... | 01/31/1984 |
| 4421617 | Photolytic production of hydrogen from water A catalytic dispersion of fine metal particles mediates the photodissociation of water into hydrogen gas. A protective agent adsorptive to said particles and selected from among homopolymers, copolymers, hydrocarbyl radicals and polysaccharides stabilizes... | 12/20/1983 |
| 4397823 | Process and apparatus for removing a pollutant from a gas stream Carbonaceous particles are removed from an exhaust gas stream by passing the stream through a frustoconically shaped bleaching zone into which a similarly shaped diverging beam of laser radiation that is absorbed selectively by the particles is directed c... | 08/09/1983 |
| 4395436 | Process for preparing electrochemical material A process for preparing an electroconductive metal coating on a substrate wherein precursor compounds capable of decomposing to form an electroconductive coating are subjected to localized high intensive heat, followed by rapid cooling, while maintaining ... | 07/26/1983 |
| 4367130 | Chemical reaction An apparatus and method for reacting on matter with shock waves which are directed through or against said matter. In a preferred form, the shock waves are generated intermittently for an extended period of time, during which time the work is subjected to... | 01/04/1983 |
| 4364870 | One-step syntheses of uranium hexamethoxide and mixed methoxy uranium (VI) fluorides from uranium hexafluoride and two-step synthesis of uranium hexamethoxide from uranium tetrachloride The invention relates to an improved method for synthesizing uranium hexamethoxide and new mixed methoxy uranium (VI) fluorides from uranium hexafluorides. Irradiation of the products of the invention in the vapor phase, with a pulsed CO2 gas l... | 12/21/1982 |
| 4362689 | Production of hydrogen-based gaseous fuel A process for producing hydrogen-based gaseous fuel which comprises causing a fusion reaction of fusion fuel and utilizing the energy from said reaction to achieve direct dissociation of water to hydrogen and oxygen, to heat carbon containing compounds to... | 12/07/1982 |
| 4357307 | Method of separating isotopes in which a compounding of selectivity is achieved by limiting the timing of the collection step Methods for separating isotopes are disclosed including providing molecules which contain the element whose isotopes are to be separated and which have an isotopically shifted but overlapping infrared absorption spectrum associated with those isotopes whi... | 11/02/1982 |
| 4349583 | Laser enhanced maskless method for plating and simultaneous plating and etching of patterns A method for high resolution maskless plating with an immersion, exchange or like plating bath is described. Preferential plating results from exposing those regions where plating is sought to an energy beam to increase the plating rate and the resulting ... | 09/14/1982 |
| 4343687 | Production of chain reactions by laser chemistry Directed to the use of non-resonant laser energy to initiate reactions in reaction mixtures containing ingredients of the kind and in the amounts capable of forming chain reactions.... | 08/10/1982 |
| 4340617 | Method and apparatus for depositing a material on a surface An apparatus and method for depositing a layer of a surface-compatible material from the fluid phase onto a selected surface of a substrate body in a fluid deposition chamber features a laser source of optically focused energy directed toward the body sur... | 07/20/1982 |
| 4330382 | Synthesis process using photo-induced deligandation A process is provided for inducing a ligand substitution reaction. The process involves exposing to optical radiation a gaseous mixture including a compound of a transition metal and a first ligand and a gaseous second ligand. The gaseous transition metal... | 05/18/1982 |
| 4324624 | Method for the activation of a composition for fused bath electrolysis An electrolyte, containing alkali halide, is physically transformed by means of activation-triggering energy falling within a continuum of parameters defining threshold and maximum limits. The activation-triggering energy comprises various ionizing and su... | 04/13/1982 |
| 4311570 | Chemical process on the surface of a rotating body A wide variety of chemical processes using thin films of reactants are carried out on the surface of a body rotating at high speed and the products are readily isolated (for example as fine particles or fibres) by using centrifugal force to fling the prod... | 01/19/1982 |
| 4270997 | Laser photochemical synthesis of Si3 N4 Disclosed is a method to synthesize Si3 N4 from SiX4 +NX.s3, wherein X is selected from hydrogen and/or fluorine, by laser photochemical reaction (LPR) technique in a controlled atmosphere chamber wherein the reactant gas... | 06/02/1981 |
| 4252623 | Ozone production via laser light energy My invention relates to the use of laser light energy to excite oxygen from its normal ambient state to that required for it to convert to molecular ozone. Laser light energy is passed through a flowing stream of oxygen molecules and atoms, either when th... | 02/24/1981 |
| 4247379 | Method for chemical reactions using high intensity radiant energy and system therefor An apparatus for accomplishing photochemical reactions includes a series of reaction chambers and a heat exchanger. When the apparatus is employed for the production of hydrogen and hydrogen peroxide from water or water vapor, cold water is initially pass... | 01/27/1981 |
| 4230546 | Method of molecular specie alteration by nonresonant laser induced dielectric breakdown Irradiation of a molecular specie by itself or in the presence of a secondary material at a pressure above a threshold value for the particular system by a laser of predetermined minimum power and having a frequency displaced from an absorption line of th... | 10/28/1980 |
| 4229502 | Low-resistivity polycrystalline silicon film A method of fabricating a low-resistivity polycrystalline silicon film deposited on a substrate comprises the steps of doping the polycrystalline silicon film with boron in situ while depositing the film, to a concentration greater than 1×1020... | 10/21/1980 |
| 4224072 | Pit and fissure sealant for teeth An inorganic, enamel-like sintered coating (or sealant) adherent to teeth is disclosed. Materials very similar to tooth enamel, e.g., hydroxyapatite, combined with a low melting eutectic constitute the coating. This material can be applied to the tooth an... | 09/23/1980 |
| 4207154 | Wave generating apparatus and method An apparatus for reacting on matter with shock waves which are directed through or against said matter. In one form, the shock waves are generated intermittently for an extended period of time, during which time the work is subjected to the high temperatu... | 06/10/1980 |
| 4183795 | Creation of F2+ color centers Production of F2+ color centers in alkali halide crystals with densities high enough for efficient use in lasers is achieved by a two-step, highly selective photoionization mechanism. This mechanism is coupled with the use of suitabl... | 01/15/1980 |
| 4172775 | Photochemical separation of metals in solution by precipitation following reduction or oxidation Mixtures of metals are separated by forming salts of the metals which exhibit photoredox activity with an anion selected to provide insoluble salts at one oxidation state and soluble salts at another oxidation state, forming a solution of these salts with... | 10/30/1979 |
| 4167463 | Nitrogen fixation with a high energy laser Disclosed is a method and device for the fixation of atmospheric nitrogen ilizing the very high temperature and rapid quenching rates of plasmas produced by the focused beam of a repetitively-pulsed, high energy laser. The irradiance at the focal point of... | 09/11/1979 |
| 4161436 | Method of energizing a material This application discloses light amplifier apparatus and uses for the same. A light amplifier apparatus is disclosed in which population inversion is created by optical pumping. Another light amplifier apparatus is disclosed in which population inversion ... | 07/17/1979 |
| 4147602 | Production of hydrogen and carbon dioxide Hydrogen and carbon dioxide are produced by activating a mixture of carbon monoxide and water with monochromatic light. Preferably, a unidirectional stream of steam activated with a laser at 5400 cm.-1 collides with a carbon monoxide stream to ... | 04/03/1979 |
| 4144151 | Production of B10 H14 from B2 H6 at room temperature by laser induced chemistry using DF laser A method for the production of B10 H14 by laser induced chemistry is disclosed. A DF laser is used to irradiate a laser reaction cell containing diborane (B2 H6). The P12 (2611 cm-1) freque... | 03/13/1979 |
| 4131528 | Process for the mass production of ozone The invention provides a process for the mass production of ozone in a liquid form from liquid oxygen, by the utilization of ozonizing radiations or electric discharge occurring in the oxygen gasified by being warmed to a temperature not higher than the b... | 12/26/1978 |
| 4124466 | Enhancing chemical reactions Methods of enhancing selected chemical reactions. The population of a selected high vibrational energy state of a reactant molecule is increased substantially above its population at thermal equilibrium by directing onto the molecule a beam of radiant ene... | 11/07/1978 |
| 4097348 | Method and apparatus for producing hydrogen A method and apparatus for producing hydrogen for use as an ingredient as hydrogen-based fuels which comprises introducing a quantity of gaseous HCl and subjecting said gas to the heat and radiation of a fusion reaction to dissociate into H2 an... | 06/27/1978 |
| 4075072 | Laser chemistry synthesis of NF4 BF4 A process for producing the product NF4 BF4 by subjecting gases 3, BF3, and a gaseous source of a compound which releases fluorine gas when subjected to a tuned CO2 laser source to cause the product N... | 02/21/1978 |
| 4070261 | Production of B2 H6 from BCl3 + H2 at room temperature by laser induced chemistry A CO2 laser is used to irradiate a laser cell containing gaseous BCl3 + H2 at room temperature (25° C) to produce B2 H6. The product is sufficiently stable (no loss of concentration over a period of ... | 01/24/1978 |
