Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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 |
| 7244359 | Inorganic ion sorbent method A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within... | 07/17/2007 |
| 7101115 | stabilization of persistent hydrophobic organic contaminants in sediments using coal- and wood-derived carbon sorbents To overcome obstacles faced by current remediation technologies for contaminated sediments, the present invention provides a new strategy based on in situ control of hydrophobic organic contaminants (HOC) bioavailability. The strategy employs the addition of activat... | 09/05/2006 |
| 7049922 | Method and apparatus for decreasing gassing and decay of insulating oil in transformers The invention deals with increasing the quality of insulating mineral oil in transformers, by providing an isolating layer of flowing nitrogen over the oil's surface to keep ambient air from combining or absorbing with or in the oil, also providing a kidney or filte... | 05/23/2006 |
| 6998050 | Method of treating fats and oils The present invention provides a method of treating fats and oils containing low concentrations of aromatic halogen compounds and other contaminants by contacting the fats or oils with an adsorbing agent. The adsorbing agent contains a porous body and a non-protonic... | 02/14/2006 |
| 6649044 | Process for the reductive dehalogenation of halogenated hydrocarbons The present invention relates to a process for the reductive dehalogenation of halogenated hydrocarbons. It comprises reacting halogenated hydrocarbons with a reducing metal and a hydrogen donating compound in the presence of an amine. Preferably, the hal... | 11/18/2003 |
| 6638488 | Method and apparatus for removing organic hazardous substances using selected solvents Method and apparatus for isolating, decomposing, and fixing the organic hazardous substances in a stable manner using chemical techniques and isolating and decomposing the organic hazardous substances from various waste mixtures. The temperature treatment... | 10/28/2003 |
| 6576122 | Process for the reductive dehalogenation of liquid and solid halogenated hydrocarbons 1. Process for the reductive dehalogenation of liquid or solid halogenated hydrocarbons. 2.1 Toxic liquid or solid halogenated hydrocarbons such as DDT, HCH, in particular halogenated aromatics such as TCB, PCB, PCP and PCDD/PCDF as such or as contaminant... | 06/10/2003 |
| 6476284 | Method of dehalogenating hydrocarbon containing carbon-carbon double bond An efficient dehalogenation can be carried out by a method which comprises treating an organic compound containing a compound of halogen, such as fluorine or chlorine, as an impurity and having non-conjugated carbon-carbon double bonds, for example, buten... | 11/05/2002 |
| 6380454 | Destruction of polychlorinated biphenyls Chlorobenzenes present in PCBs as viscosity reducing diluents can be largely removed from the PCBs by fractional distillation without carry over of PCBs into the chlorobenzene rich distillate. The PCB rich bottoms can be economically destroyed using a sod... | 04/30/2002 |
| 6312587 | Method of treating polychlorinated aromatic compound A method of treating a polychlorinated aromatic compound or a hydrocarbon oil containing a polychlorinated aromatic compound involves the step of heating while stirring the polychlorinated aromatic compound or the hydrocarbon oil containing the polychlori... | 11/06/2001 |
| 6197199 | Use of protein-polysaccharide complex in removal of contaminants The present invention relates to a method of using a protein-polysaccharide complex composition as an adsorbent and filtering aid for in the processing of fluids or solids to absorb or decompose a variety of separable components including halogenated orga... | 03/06/2001 |
| 6072099 | Process for low temperature pyrolysis of dioxins Pyrolysis of dioxins adsorbed on a carbonaceous adsorbent such as activated carbon or activated cokes is carried out with much higher efficiency by heating a dioxins-adsorbed carbonaceous adsorbent in the presence of an alkali component in an oxygen-defic... | 06/06/2000 |
| 5994604 | Method and apparatus for low temperature destruction of halogenated hydrocarbons A method and apparatus for decomposing halogenated hydrocarbons are provided. The halogenated hydrocarbon is mixed with solvating agents and maintained in a predetermined atmosphere and at a predetermined temperature. The mixture is contacted with recycla... | 11/30/1999 |
| 5986147 | Method and solution for removal of poly chlorinated biphenyl A method and apparatus is provides for decontamination of soil from contaminates such as polychlorinated biphenyls. The method involves (a) admixing a short chain alcohol and a ethoxylated alcohol to provide a solvent composition, (b) admixing the solvent... | 11/16/1999 |
| 5951852 | Destruction of halide containing organics and solvent purification A process for removal of halide from a halide containing organic compound in a solvent, a process for simultaneous removal of halide from a halide containing organic compound and reduction of an oxygen containing organic compound in a solvent, a process f... | 09/14/1999 |
| 5928500 | Removal of halogenated organic compounds from hydrocarbon streams This invention is a process for removing minor amounts of organic halide e.g., organic chloride, contaminants from hydrocarbon feedstocks by contact with a regenerable solid adsorbent comprising a metal and/or metal hydride selected from nickel, cobalt or... | 07/27/1999 |
| 5895636 | Catalytic compositions and methods for suppression of halogenation of organic compounds with oxidation products of halogenated organic compounds in gaseous emission streams Methods and chemical compositions for treating a gas stream comprising non-halogenated and halogenated organic compounds while suppressing halogenation of the non-halogenated organic compounds with the oxidation products of the halogenated organic compoun... | 04/20/1999 |
| 5663479 | Process for the chemical decomposition of halogenated organic compounds Halogenated contaminants are decomposed in a fluid and solid by reacting such matrix with a reagent composed of a non-alkali metal, a polyalkyleneglycol/or NixolensR and a hydroxide/or alcoholate. Further, this reagent combined with certain sol... | 09/02/1997 |
| 5602296 | Process for in-situ bidegradation of chlorinated aliphatic hydrocarbons by subsurface hydrogen injection The present invention provides a method for stimulating in-situ microbial biodegradation of halogenated organic compounds in an aqueous subsurface environment comprising the delivery of hydrogen, in the absence of nutritional factors, into the subsurface ... | 02/11/1997 |
| 5490919 | Process for the dehalogenation of organic compounds Organohalides are dehalogenated by bringing an organohalide or a mixture of two or more organohalides into contact with an alkali hydroxide in an alcoholic solution and in the presence of a catalytically effective amount of a heterogeneous transfer hydrog... | 02/13/1996 |
| 5476987 | Method of removing halogenated aromatic compound from hydrocarbon oil A safe and reliable method of removing halogenated aromatic compounds present in small amounts in hydrocarbon oil constituted mainly by non-aromatic hydrocarbon oil. The hydrocarbon oil is contacted with a heat-resistant alkaline polar solvent in the pres... | 12/19/1995 |
| 5430231 | Process for the disposal of chlorinated organic products by sulphonation or nitration and subsequent oxidation A process for the disposal of chlorinated organic products, wherein said products are first treated with a sulphonating or nitrating agent, and then are oxidized with an aqueous solution of H2 O2, in the presence of Fe(II) ions as ca... | 07/04/1995 |
| 5414202 | Method for rapid decomposition of methyl chloromethyl and bis(chloromethyl) ethers Surfaces contaminated with chloromethylmethyl ether and bis-chloromethyl ether may be decontaminated by treating them with an aqueous solution of a basic organic amine, for example a tertiary amine, a nonionic surfactant and an alkali-metal hydroxide.... | 05/09/1995 |
| 5382736 | Method for catalytic dechlorination of polychlorinated biphenyls An improved method for the dechlorination of polychlorinated biphenyls that are dissolved in an organic solvent, which comprises the incremental additions of a hydrogen transfer agent, such as potassium formate, in the presence of a catalytic amount of a ... | 01/17/1995 |
| 5354931 | Process for hydrotreating an organic feedstock containing oxygen compounds and a halogen component The invention provides a process for hydrotreating an organic feedstock containing oxygen compounds and a halogen component by means of removing the oxygen compounds with an adsorbent and then contacting the resulting organic feedstock having a reduced co... | 10/11/1994 |
| 5326467 | Recovering polychlorinated biphenyls from solution A method of recovering polychlorinated biphenyls from solution, which comprises a multi-step method of mixing and reacting an alkali metal or alkaline earth hydroxide in glycol solution with polychlorinated biphenyls in non-aqueous solvent to form bipheny... | 07/05/1994 |
| 5316663 | Process for the treatment of halogenated hydrocarbons A process to convert organic waste streams containing halide compounds to produce hydrogenated organic compounds and to recover the resulting hydrogen halide as an anhydrous product stream.... | 05/31/1994 |
| 5314614 | Process for hydrotreating an organic feedstock containing olefinic compounds and a halogen component The invention provides a process for hydrotreating an organic feedstock containing thermally unstable compounds and a halogen component by means of contacting the organic feedstock and a gaseous recycle stream containing hydrogen and a hydrogen halide com... | 05/24/1994 |
| 5304702 | Process of decomposing chlorofluorohydrocarbons Polyhalogenated organic compounds, such as polychlorinated dibenzodioxines, dibenzofurans, biphenyls, biphenyl ethers, phenols, benzenes and cyclohexanes as well as chlorofluorohydrocarbons are destroyed by reaction with a surplus of strongly basic hydroc... | 04/19/1994 |
| 5290432 | Method of treating toxic aromatic halogen-containing compounds by electrophilic aromatic substitution An improved method for detoxifying waste materials contaminated with halogenated aromatic hydrocarbons is disclosed. The method provides for detoxification of halogenated aromatic compounds by electrophilic aromatic substitution. The method also provides ... | 03/01/1994 |
| 5288390 | Polycyclic aromatic ring cleavage (PARC) process A process for the processing or upgrading of heavy oil fractions containing polynuclear aromatics is disclosed. The process comprises selectively oxidizing a feedstock under low severity conditions in a multi-phase system, wherein one phase is an aqueous ... | 02/22/1994 |
| 5286386 | Solvent extraction process for treatment of oily substrates The present invention is directed to a process for treating an oily substrate, including a mixture comprising water and oily material or a mixture comprising water, solids and oily material as components, and wherein such treatment comprises contacting th... | 02/15/1994 |
| 5220109 | Destruction of halogenated organic species Halogenated organic species, e.g., chlorinated or brominated dioxins or dibenzofurans, PCBs, and the like, are consumed by contacting such species, at a temperature of greater than 220° C., with a stoichiometric excess, relative to the halogen content th... | 06/15/1993 |
| 5205925 | Recovering polychlorinated biphenyls from solution A method of recovering polychlorinated biphenyls by mixing and reacting a soluble polymer with polychlorinated biphenyls in non-aqueous solvent to form a precipitate reaction complex of the polymer and biphenyl, and separating the precipitate from the sol... | 04/27/1993 |
| 5198122 | Method of detoxification of substances by utilization of ultrasonic energy An improved method for detoxification of contaminated liquids or solid materials by the application of ultrasonic energy to the material in the presence of agents capable of initiating chemical reactions with toxic contaminants, which chemical reactions f... | 03/30/1993 |
| 5197823 | Method and apparatus for treating PCB-containing soil A method and apparatus for treating polychlorinated biphenyl (PCB) contaminated soil includes providing a contaminated soil having PCBs therein and treating the soil with elemental zinc powder. The elemental zinc powder reacts with the PCBs in the contami... | 03/30/1993 |
| 5185488 | Process for the reductive dehalogenation of polyhaloaromatics with sodium or calcium in a lower alcohol A process for the reductive dehalogenation of halogenated aromatics. The process comprises reacting halogenated aromatics with sodium or calcium in the presence of a lower alcohol selected from the group comprising methanol, ethanol or isopropanol and mix... | 02/09/1993 |
| 5174893 | Process for dehalogenation of contaminated waste materials An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost.... | 12/29/1992 |
| 5154831 | Solvent extraction process employing comminuting and dispersing surfactants The present invention is directed to a process for treating an oily substrate, including a mixture comprising water and oily material or a mixture comprising water, solids and oily material as components, and wherein such treatment comprises contacting th... | 10/13/1992 |
| 5152844 | Degradation of polychlorinated biphenyls Polychlorinated biphenyls are chemically degraded by contact with a Lewis acid catalyst in a nonaqueous liquid medium, in the presence of a cation which combines the chlorines on the PCBs to form a solid chloride of the cation which will precipitate out f... | 10/06/1992 |
