Did You Know...
...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4059675 | Decomposition of halogenated organic compounds A method for decomposing halogenated organic compounds which comprises: (a) preheating the halogenated organic compound to a temperature above about 300° C. and (b) contacting the preheated organic compound with a catalytic amount of ruthenium in the pre... | 11/22/1977 |
| 4059676 | Decomposition of halogenated organic compounds A method for decomposing halogenated organic compounds which comprises: (a) heating the halogenated organic compound to a temperature above about 300° C. and (b) contacting the heated organic compound with a catalytic amount of ruthenium-platinum catalys... | 11/22/1977 |
| 4055625 | Method of treatment of a mixture of air and at least partially radioactive rare gases The method of treatment of a mixture of air and at least partially radioactive gases such as xenon and krypton in particular, especially gaseous effluents derived from the reprocessing of irradiated nuclear fuels, comprises a stage of concentration of the... | 10/25/1977 |
| 4053556 | Catalysis This invention relates to processes for catalytically oxidizing organic compounds (for example, methane, ethane, propylene and carbon monoxide), catalytically reducing oxides of nitrogen with a reducing fuel as well as for the production of methane by the... | 10/11/1977 |
| 4045539 | Process for decontaminating gas containing radioactive iodine A vent gas containing radioactive iodine and methyliodide is effectively decontaminated by chemically adsorbing the iodine contained in the vent gas onto an activated carbon layer at first, then physically adsorbing the methyl iodide contained in the vent... | 08/30/1977 |
| 4041130 | Process for desulfurization of coke oven gas A process for reducing the sulfur content of coke oven gas containing hydrogen sulfide, organo-sulfur compounds, and at least one inorganic carbon-sulfur compound, comprises treating the gas stream to remove most of the hydrogen sulfide and then catalytic... | 08/09/1977 |
| 4038336 | Purification of unsaturated compounds Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst comprising as the major cation portion at least two metals of Periodic Table Groups 1b, 2b, 4b, 6b, 7b and 8. Reactor effluent from oxi... | 07/26/1977 |
| 4035473 | Method of removing acetylene from anhydrous-hydrogen chloride Small amounts of acetylene in anhydrous hydrogen chloride can be reduced by heating the gas to a temperature within the range of about 300° C to 500° C in the presence of oxygen, said oxygen being in molar excess to that of the acetylene present. The pr... | 07/12/1977 |
| 4034062 | Removal of oxygen from gas stream with copper catalyst Gas stream containing primarily hydrogen and carbon monoxide as well as small quantities of acetylene, oxygen and ethylene is passed through a bed of copper catalyst to remove all or substantial portion of acetylene, oxygen and ethylene.... | 07/05/1977 |
| 4025605 | Method for removing low concentrations of oxidizable organic contaminants from an oxygen-containing inert gas A method for removing low concentrations of oxidizable organic contaminants from an oxygen containing inert gas comprises: (1) adsorbing the contaminants on a sorptive media which contains an oxidation catalyst in a reaction zone; (2) interrupting the flo... | 05/24/1977 |
| 4020051 | Control of nitrogen oxide reactions in off-gases from the diazotization/coupling of aromatic amines The deposition of an aromatic diazonium nitrate on the walls of a pipeline through which is conducted a residual gas produced in the diazotization of a primary aromatic monoamine is prevented by heating the walls of the pipeline, limiting the residence ti... | 04/26/1977 |
| 4018678 | Method of and apparatus for fluid filtration and the like with the aid of chitosan This disclosure is concerned with the use of chitosan as a coating or packing in fluid filtration and other systems to provide a high ratio of surface-to-volume of reactive material that exposes a maximum number of reactive amino groups for rapid reaction... | 04/19/1977 |
| 4016242 | Salts of the iodine oxyacids in the impregnation of adsorbent charcoal for trapping radioactive methyliodide Radioactive iodine and radioactive methyliodide can be more than 99.7 per cent removed from the air stream of a nuclear reactor by passing the air stream through a 2-inch thick filter which is made up of impregnated charcoal prepared by contacting the cha... | 04/05/1977 |
| 4001371 | Catalytic process Catalyst members of a class exemplified by La0.8 K0.2 MnO3 catalyze the conversion of NOx pollutants to the non-polluting materials N2 O, N2, and O2. These compounds are also eff... | 01/04/1977 |
| 3998902 | Purification of unsaturated compounds Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst of Periodic Table Groups 1a, 1b, 2a, 2b, 3b, 4b, 6b, 7b, 8 and mixtures. Reactor effluent from oxidative dehydrogenation reaction to pr... | 12/21/1976 |
| 3994831 | Metallic catalyst support and catalytic metal coated on same A perforated catalyst support formed in the shape of Lessing ring is disclosed. Also disclosed is a method of converting hydrocarbon waste gas streams which utilizes a catalyst supported on the perforated Lessing ring.... | 11/30/1976 |
| 3983216 | Process for the removal of vinyl chloride from gas streams Vinyl chloride is removed from gas streams that contain from about 10 ppm to 1000 ppm of vinyl chloride by contacting the vinyl chloride in the gas stream with ozone in the presence of activated carbon. The gas streams treated in this way contain less tha... | 09/28/1976 |
| 3970739 | Process for concurrently treating process waste waters and flue gases from ammonia synthesis process plants The process involves stripping ammonium nitrogens and organic materials, as gases, which are present in process waste waters to be discharged from plants wherein gases for use in ammonia synthesis are manufactured by reforming hydrocarbons with steam, dec... | 07/20/1976 |
| 3961018 | Method for purification of gas streams by removal of acidic gases A method and apparatus for removal of acidic gases from a gas stream by contacting the gas stream with an amine vapor in a reaction zone. The partial pressure of amine vapor in the reaction zone is at least 5 percent of the total pressure therein, resulti... | 06/01/1976 |
| 3946101 | Filtering material A fluid filter, especially useful for cigarettes and the like, comprises cellulose which has been oxidized by an inorganic metal nitrate, such as manganese nitrate. Other constituents, such as activated charcoal, tobacco, powdered pumice and thermoplastic... | 03/23/1976 |
| 3939103 | Catalytic product for the oxidative destruction of gaseous organic compounds and method for their preparation A catalyst for the oxidative destruction of gaseous organic compounds comprises 50-80% of a mixture of active carbonates and oxides, i.e., 50-85% of manganese oxides, 0-30% of manganous carbonate, 3-10% of cupric oxide, and 0-15% of nickel oxides; and 50-... | 02/17/1976 |
| 3933979 | Gas purifying method Hydrogen containing gases are purified to remove components therein having polymerization, resinification or coking tendencies or to transform such compounds into harmless compounds. The sulfur content of the hydrogen containing gas is adjusted by adding ... | 01/20/1976 |
