Patents
Patents for C01B 13 - Oxygen; Ozone; Oxides or hydroxides in general (14,838)
04/1992
04/21/1992US5106589 Method of controlling ozone generator
04/21/1992CA1298955C Continuous process for production of fine particulate ceramics
04/17/1992CA2077215A1 Inorganic particulate material comprising fine balls of uniform size and process for producing same
04/16/1992WO1992006037A1 Carbonate-free inorganic nitrates or oxides and process thereof
04/14/1992US5104426 Pressure swing adsorption
04/11/1992CA2027293A1 Method for obtaining a powdered refractory material and a reactor for carrying out the method
04/10/1992WO1992005862A1 Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane
04/10/1992CA2093332A1 Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane
04/08/1992EP0479774A2 Method of improving the slipperiness of polyester film
04/08/1992EP0478777A1 Coated dielectric material for an ozone generator.
04/08/1992EP0478768A1 Process for the synthesis of high porosity, high specific surface metallic oxides, oxides obtained and catalysts containing same.
04/08/1992EP0478672A1 Methods for generating plasma and producing ozone
04/08/1992CN2101039U High ozone soundless discharge tube
04/07/1992US5102861 Superconductive materials implanted with phosphorus ions and process for preparing the same
04/07/1992US5102629 Field formation apparatus
04/02/1992WO1992005109A1 Photodynamic activity of sapphyrins
03/1992
03/31/1992US5100869 Grinding and alloying metal powders followed by oxidation
03/31/1992US5100596 Synthesis of membrane composed of a pure molecular sieve
03/25/1992EP0476876A2 Process for non-destructive heat treatment of spooled silver coated high temperature superconductor
03/25/1992EP0476115A1 Process to separate dioxygen from a gas mixture
03/25/1992EP0342218B1 Metallic oxide powders, their mixtures, systems of mixed metallic oxide powders, their mixtures and their use for catalytic dehydration of hydrocarbons
03/25/1992CN1059737A Oxygen-permeable polymeric membranes
03/25/1992CN1059736A Oxygen-permeable polymeric membranes
03/25/1992CN1059672A Oxygen-separating porous membranes
03/24/1992US5098880 Forming carbon on a molecular sieve support to use as an adsorbent for gases such as nitrogen and oxygen
03/24/1992US5098671 Ozonizer utilizing a magnetic field
03/19/1992DE4029447A1 Energy-efficient ozone generator for continuous prodn. - with inverter having choke with variable inductance and controllable thyristor
03/18/1992EP0475053A1 Oxygen-separating porous membranes
03/18/1992EP0474866A1 Aluminum-base oxides, moldings thereof, and production of said oxides
03/17/1992US5097443 Storage medium, storage method and stored information reading method
03/17/1992US5096882 Process for controlling oxygen content of superconductive oxide, superconductive device and process for production thereof
03/17/1992US5096724 Methods, compositions, and systems for ligand extraction
03/17/1992US5096642 Process for producing a high density ceramic of perovskite
03/11/1992EP0474106A2 Process for making modified carbon molecular sieves for gas separation
03/11/1992EP0428512A4 Ozone generation by corona discharge at elevated pressures
03/10/1992US5094822 Corona discharge
03/10/1992US5094691 Refractive index
03/10/1992CA1297046C Nitrogen adsorption process
03/05/1992WO1992007795A1 Hydrophobised double-layer hydroxide compounds
03/05/1992WO1992003376A1 Method for manufacturing high temperature superconductive oxide thin film
03/04/1992EP0473401A2 Method of manufacturing oxide superconductive material
03/04/1992EP0472789A1 Thin flexible sintered structures
03/03/1992US5093302 Energy source for decomposition of water
03/03/1992US5093087 Ozonator apparatus
03/03/1992CA1296672C Process for the photocatalytic decomposition of water into hydrogen and oxygen
03/01/1992WO1992004276A1 Nitrogen atmospheres
03/01/1992CA2087599A1 Nitrogen atmospheres
02/1992
02/26/1992EP0472083A1 Method of forming oxide superconducting thin film
02/26/1992EP0289582B1 Method for preparing a metal oxide varistor precursor powder
02/25/1992US5091069 Utilize a current fed inverter power supply which only supplies a controlled output current waveform to the load, prevents short circuit
02/25/1992US5091012 Cobalt titanate particles and process for producing the same
02/19/1992WO1992003375A1 Process for producing metal hydroxides with a small specific area
02/19/1992EP0471064A1 Method for producing oxygen by adsorption separation from air.
02/18/1992US5089455 Bending strength, for tapes, ribbons, sheets, wires
02/18/1992US5089248 Production of metallic oxides
02/18/1992US5089098 Controlled production by direct application of electrical energy imput
02/16/1992CA2049200A1 Oxygen-separating porous membranes
02/12/1992EP0470761A1 Electrolytic ozone generation
02/12/1992EP0470248A1 Metal/superconducting oxide composites and preparation thereof
02/12/1992CN1015448B Transparent non-vitreous ceramic particulate
02/11/1992US5087437 Process for preparing crystalline mixed metal oxides
02/11/1992US5087428 Air purifying system
02/11/1992US5087426 Ozone deodorizer for refrigerators
02/11/1992US5086620 Method of microencapsulation of hyperbaric gas
02/09/1992CA2048516A1 Ozone generation
02/05/1992EP0469603A2 A device for forming a compound oxide superconducting thin film
02/05/1992EP0243488B1 Method and apparatus using a solid electrolyte in the form of a disk for the separation or pumping of oxygen
02/04/1992US5086033 Pyrlysis of carbon containing compound to narrow pore size by deposition
02/04/1992US5085809 Means for ozone treatment of water for water supply system
01/1992
01/29/1992EP0467891A1 Protection of superconductors from degradation
01/29/1992EP0277245B1 Process for producing complex oxide to be used for producing ferrite
01/28/1992US5084209 Mixing alkoxide salts and hydrolyzing, gelation
01/28/1992CA1294835C Modified powder or particulate material
01/28/1992CA1294758C System for the extraction and utilization of oxygen and other ligands from fluids
01/22/1992EP0467194A1 Process for the preparation of metal oxide powder
01/21/1992US5082482 Process and apparatus for the production of gaseous oxygen with a variable flow by air distillation
01/15/1992CN2093170U High-efficiency ozone generator
01/14/1992US5081102 Preparation of precursor superconductor metal oxide powders by spray calcination from atomized nitrate solution
01/14/1992US5080880 Niobium Pentachloride, Niobium Pentoxide, Hydrochloric Acid
01/14/1992US5080718 Inorganic pigments of the empirical formula Ax By Cz
01/14/1992CA1294225C Oxidation of carbonaceous material
01/09/1992WO1992000252A1 Fluidized calcining process
01/08/1992EP0465075A1 Cobalt titanate particles and process for producing the same
01/08/1992EP0464718A1 Oxygen-permeable polymeric membranes
01/08/1992EP0464717A1 Oxygen-permeable polymeric membranes
01/08/1992EP0464107A1 Controlled release of desired product through the controlled reaction of precursor
01/08/1992EP0422105A4 Metal oxide ceramic powders and thin films and methods of making same
01/08/1992CN2092536U 真空电极管 Electrode vacuum tube
01/07/1992US5079203 Polyoxometalate intercalated layered double hydroxides
12/1991
12/31/1991US5077265 Forming solution of bismuth and at least one other metal in aqueous, acid solvent, desolventizing, coprecipitating mixed salts as hydroxycarbonates, calcination
12/31/1991CA2045965A1 Oxygen-permeable polymeric membranes
12/27/1991EP0462600A1 Process for preparing superconductive thin films
12/27/1991EP0462344A1 Method for producing composite oxides for use ad starting materials for ferrites
12/27/1991EP0335934B1 Process for producing pulverulent mixed phases with a catalytic action
12/24/1991US5075090 Atomizing, ignition, combustion of organometallic and/or organosilicon compounds in combustible organic liquid
12/24/1991US5075089 Calcining, forming intercalation compound with chromate, molybdates, vavadates, tungstates, or silicates
12/21/1991CA2044941A1 Process for preparing superconductive thin films
12/18/1991EP0461950A1 Porous matrix material containing a second element in dispersed form and process for its manufacture
12/18/1991EP0461853A2 Residential furnaces, air-intake system therefor, and method of operating them
12/18/1991EP0461752A1 Ozone generator method and apparatus