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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 4973201 | Method for removing scale and radioactive material from earth Surface layers of the earth contaminated with precipitates of alkaline earth metal sulfates including radium sulfate derived from subterranean waters brought to the surface of the earth, are decontaminated using an aqueous chemical composition including a... | 11/27/1990 |
| 4849360 | Apparatus and method for confining and decontaminating soil The invention is an apparatus for aerobically biodegrading an organic compound such as a petroleum product which is contaminating a particulate solid such as soil and a process for employing the apparatus. A preferred embodiment comprises a pit lined with... | 07/18/1989 |
| 4844839 | In situ treatment and analysis of wastes Hazardous wastes are identified and treated in situ by forming a downwardly extending zone of particles in the waste. Toxic components in the waste are identified by injection of a pressurized fluid into the zone and capturing a sample of gases rising to ... | 07/04/1989 |
| 4737356 | Immobilization of lead and cadmium in solid residues from the combustion of refuse using lime and phosphate Solid residues arising from the burning of solid wastes have lead and cadmium sufficiently insolubilized to pass the EPA toxicity test only where the pH in the EPA test is between 7.5 and 12.0. Addition of water soluble phosphate, especially phosphoric ac... | 04/12/1988 |
| 4726144 | Fumigation methods and compositions The invention is directed to the fumigation of soils, enclosed spaces, agricultural products and other commodities, etc., using compositions which decompose to form carbon disulfide and certain other biocidal materials. Such fumigation can be used to cont... | 02/23/1988 |
| 4632742 | Process for the decomposition and decontamination of organic substances and halogenated toxic materials A method for the decomposition of an halogenated organic compound is described which comprises reacting the compound with a reagent which consists of (a) at least one member which is a polyethyleneglycol, Nixolen.RTM., an alcohol or a polyhydroxy compound... | 12/30/1986 |
| 4401569 | Method and apparatus for treating hydrocarbon and halogenated hydrocarbon contaminated ground and ground water A method and apparatus for treating ground and ground water contaminated with hydrocarbon and halogenated hydrocarbon compounds. Treatment of contaminated water removed from the ground is accomplished by microorganisms which consume the contaminants. Grow... | 08/30/1983 |
| 4354942 | Stabilization of mercury in mercury-containing materials A process for stabilizing in situ soluble mercury in deposits of mercury-containing materials which comprises treating the deposits with a stabilizing amount of an inorganic sulfur compound. Suitable inorganic sulfur compounds include sulfides, alkali met... | 10/19/1982 |
| 4348273 | Treating cracking catalyst fines containing a passivating material In a hydrocarbon conversion operation employing a fluidized cracking catalyst wherein the cracking catalyst has been passivated to render contaminating metals thereon substantially inactive thus to avoid undesired reactions and wherein the used catalyst i... | 09/07/1982 |
| 4323367 | Gas production by accelerated in situ bioleaching of landfills A process for improved gas production and accelerated stabilization of landfills by accelerated in situ bioleaching of organic wastes by acid forming bacteria in substantially sealed landfills, passing the leachate of hydrolysis and liquefaction products ... | 04/06/1982 |
| 4156658 | Fixation of radioactive ions in porous media with ion exchange gels A method is provided for fixing radioactive ions in porous media by injecting into the porous media water-soluble organic monomers which are polymerizable to gel structures with ion exchange sites and polymerizing the monomers to form ion exchange gels. T... | 05/29/1979 |
