Nitrite Patents (Class 424/619)
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Patent number: 7078060Abstract: Solutions and aerosols of metal-containing compounds are disclosed. Methods of preparing and using the solutions and aerosols, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.Type: GrantFiled: February 12, 2003Date of Patent: July 18, 2006Assignee: Nucryst Pharmaceuticals Corp.Inventors: Robert E. Burrell, John B. Wright, Kan Lam, Hua Qing Yin, Antony G. Naylor, Peter H. Moxham, Scott H. Gillis, Paul Schechter
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Patent number: 7056537Abstract: The present invention relates to a method of abating hydrogen sulfide gas emitted by or generated in landfills. Certain embodiments of the present invention relate to contacting hydrogen sulfide gas with Fuller's earth or other carrier materials and metals such as silver, copper, iron, zinc or mixtures thereof, and other components.Type: GrantFiled: March 11, 2004Date of Patent: June 6, 2006Assignee: Aceto CorporationInventor: Richard Weschler
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Patent number: 7008647Abstract: The invention relates to the use of one or more antimicrobial metals selected from silver, gold, platinum, and palladium but most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of a acne. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.Type: GrantFiled: April 23, 2001Date of Patent: March 7, 2006Assignee: Nucryst Pharmaceuticals Corp.Inventors: Robert Edward Burrell, Hua Qing Yin
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Patent number: 7005145Abstract: The invention relates to polymer dispersions or polymer solutions that are given antibacterial and fungicidal properties by metal ions of group Ib of the Periodic table. According to the invention, a) the polymer dispersions or polymer solutions are not produced using controllers that contain thiol groups, b) the metal ions have been introduced by means of an electrochemical process and c) said dispersions or solutions do not contain any active quantity of organic biocides.Type: GrantFiled: February 14, 2002Date of Patent: February 28, 2006Assignee: BASF AktiengesellschaftInventors: Maximilian Angel, Bernhard Fussnegger, Silke Gebert
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Patent number: 7001617Abstract: The invention relates to a method to induce apoptosis and to inhibit matrix metalloproteinases in a disease condition in a human or animal by contacting hyperplastic tissue, tumor tissue, or a cancerous lesion with one or more antimicrobial metals, preferably formed with atomic disorder, and preferably in a nanocrystalline form. In another aspect of the invention, there is provided a method of preventing excessive release of matrix metalloproteinases from an inflammatory cell in a disease condition in a human or an animal by contacting the cell with a therapeutically effective amount of a noble metal in a crystalline form characterized by atomic disorder, or with a solution derived therefrom to provide a modulatory effect on one or more matrix metalloproteinases, wherein the one or more noble metals is formed with atomic disorder, and preferably in a nanocrystalline form.Type: GrantFiled: May 30, 2002Date of Patent: February 21, 2006Assignee: Nueryst Pharmaceuticals Corp.Inventors: Robert Edward Burrell, John Barrymore Wright, Kan Lam
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Patent number: 6989156Abstract: Therapeutic treatments using the direct application of selected structures of antimicrobial metals in free-standing powder form, solution form and/or suspension form in therapeutically effective amounts. The selected structures of antimicrobial metals serve as an antimicrobial agent, an anti-inflammatory agent, an immuno modulator agent, an enzyme modulator agent, and/or an anti-tumor agent, for human and/or animal use.Type: GrantFiled: April 23, 2002Date of Patent: January 24, 2006Assignee: Nucryst Pharmaceuticals Corp.Inventor: Scott H. Gillis
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Patent number: 6989157Abstract: Dry powders of metal-containing compounds are disclosed. Methods of preparing and using the dry powders, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.Type: GrantFiled: October 22, 2002Date of Patent: January 24, 2006Assignee: Nucryst Pharmaceuticals Corp.Inventors: Scott H. Gillis, Paul Schechter, Robert E. Burrell
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Patent number: 6939568Abstract: The invention relates to the use of one or more antimicrobial metals, most preferably silver, preferably formed with atomic disorder, and preferably in a nanocrystalline form, for the treatment of inflammatory skin conditions. The nanocrystalline antimicrobial metal of choice may be used in the form of a nanocrystalline coating of one or more antimicrobial metals, a nanocrystalline powder of one or more antimicrobial metals, or a solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial metals.Type: GrantFiled: April 23, 2002Date of Patent: September 6, 2005Assignee: Nucryst Pharmaceuticals Corp.Inventors: Robert Edward Burrell, Hua Qing Yin
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Patent number: 6908628Abstract: Wide spectrum disinfecting and antiseptic composition for use in the fields of human medicine, veterinary science and industry, characterized because it includes: Hydrogen peroxide, lactic acid and halogen salts (Br, I) and/or salts of heavy metals (for example, silver halides) with surfactant agents, either cationic, like chlorhexidine and/or quaternary ammonium salts, like didecyl-methyl-polyoxy-ethyl-ammonium propionate, chlorides of ammonium or compounds of ammonium propylamide or anionic, like lauryl sulphate, dodecyl sulphate or alkyl succinic salts, with suitable excipients, some of which may be ethyl or isopropyl alcohol, chlorhexidine, non-chlorinated quaternary ammonium salts, like didecyl-methyl-polyoxy-ethyl-ammonium propionate, combined or not with iodine, and/or its salts, together with excipients, some of which may be ethyl or isopropyl alcohol.Type: GrantFiled: June 10, 2002Date of Patent: June 21, 2005Assignee: OFTRAI, S.L.Inventor: Rafael Herruzo Cabrera
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Patent number: 6897349Abstract: The present invention comprises methods and compositions for making a silver-containing antimicrobial hydrophilic material. More particularly, the present invention comprises methods and compositions for stabilized silver antimicrobial devices comprising a matrix comprising a polymer network and a non-gellable polysaccharide, and an active agent. The matrix may be formed into any desired shape for its desired uses.Type: GrantFiled: May 19, 2003Date of Patent: May 24, 2005Assignee: AcrymedInventors: Bruce L. Gibbins, Lance D. Hopman
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Patent number: 6872402Abstract: Pyrogenically prepared silica doped with silver or silver oxide is prepared by feeding an aerosol into a flame such as is used for the preparation of pyrogenic silica, mixing the aerosol homogeneously with gas mixture before the reaction, then allowing the aerosol/gas mixture to react in a flame. The resulting pyrogenic silicas doped with silver or silver oxide are separated from the gas stream. The pyrogenic silica doped with silver or silver oxide by means of an aerosol can be used as a bactericidal filler.Type: GrantFiled: June 19, 2002Date of Patent: March 29, 2005Assignee: Degussa AGInventors: Helmut Mangold, Rainer Golchert
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Patent number: 6866871Abstract: Dry powders of metal-containing compounds are disclosed. Methods of preparing and using the dry powders, particularly in the treatment of a subject having a condition, are also disclosed. The metal-containing material can be, for example, an antimicrobial material, an antibacterial material, an anti-inflammatory material, an anti-fungal material, an anti-viral material, an anti-cancer material, a pro-apoptosis material, and/or an MMP modulating material. In certain embodiments, the metal-containing material is an atomically disordered, silver-containing material.Type: GrantFiled: October 22, 2002Date of Patent: March 15, 2005Assignee: Nucryst Pharmaceuticals Corp.Inventors: Scott H. Gillis, Paul Schechter, Robert E. Burrell
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Patent number: 6824794Abstract: A water treatment agent and method of treating water to inhibit, reduce, or prevent the formation of algae and bacteria in a water body. The water treatment agent may include copper sulfate penta-hydrate and/or silver, di-sodium ethylene di-amine tetra-acetic acid dihydrate, a scale inhibitor, a shocking agent and a buffer agent. For instance, the treatment agent may include a composition of copper sulfate pentahydrate, di-sodium ethylene di-amine tetra-acetic acid, monopotassium phosphate or sulfuric acid, and potassium monopersulfate and 1-hydroxyethylidene-1,1-diphosphonic acid.Type: GrantFiled: May 31, 2002Date of Patent: November 30, 2004Assignee: Innovative Water Technologies, Inc.Inventors: Terry A. Ring, Tom Smolkov, M. Anthony Gamarra
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Patent number: 6780332Abstract: A water treating system utilizes antimicrobial sand filter for killing bacteria and preventing microbial growth. Said antimicrobial sand filter consists of organic quaternary ammonium salt and inorganic metal compound.Type: GrantFiled: March 12, 2001Date of Patent: August 24, 2004Assignee: Parker Holding Services Corp.Inventors: Yen-Kuen Shiau, Chung-Hsun Wu, Vincent T Chuang
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Publication number: 20030235623Abstract: An aqueous disinfecting composition based on hydrogen peroxide and a mixture of carboxylic and percarboxylic acids, wherein the weight ratio of the said mixture to hydrogen peroxide is from about 0.002 to about 0.08, and wherein the said composition further comprises an effective amount of a metal component as a source of metal ions.Type: ApplicationFiled: June 21, 2002Publication date: December 25, 2003Inventor: Piet J.A. Van Oosterom
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Patent number: 6653519Abstract: Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or metal hydroxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide or metal hydroxide nanocrystals can be pressed into pellets for use when a powder is not feasible. Preferred metal oxides for the methods include MgO, SrO, BaO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, SiO2, ZnO, Ag2O, [Ce(NO3)3—Cu(NO3)2]TiO2, Mg(OH)2, Ca(OH)2, Al(OH)3, Sr(OH)2, Ba(OH)2, Fe(OH)3, Cu(OH)3, Ni(OH)2, Co(OH)2, Zn(OH)2, AgOH, and mixtures thereof.Type: GrantFiled: April 3, 2001Date of Patent: November 25, 2003Assignee: Nanoscale Materials, Inc.Inventors: Olga Koper, Kenneth J. Klabunde, Lisa S. Martin, Kyle B. Knappenberger, Laura L. Hladky, Shawn P. Decker
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Patent number: 6583176Abstract: A non-toxic environmentally friendly aqueous disinfectant is disclosed for specific use as prevention against contamination by potentially pathogenic bacteria and virus. The aqueous disinfectant is formulated by electrolytically generating silver ions in water in combination with a citric acid. The aqueous disinfectant may include a suitable alcohol and/or a detergent. The aqueous disinfectant has been shown to be very effective at eliminating standard indicator organisms such as staphylococcus aureus, salmonella cholerasuis and pseudomonas aeruginosa.Type: GrantFiled: March 2, 2001Date of Patent: June 24, 2003Assignee: Innovative Medical ServicesInventor: Andrew B. Arata
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Patent number: 6579541Abstract: The invention relates to a method and composition for destroying or inhibiting proliferation of microbes using oxidative fluorinator compounds. Fluoride salts that do not dissociate completely in aqueous solutions, such as tri- or tetravalent transition metal fluorides, inert gas fluorides, or tri- or tetravalent rare earth fluorides, are effective antimicrobial agents even at levels up to about 20 ppm, when used alone or in conjunction with a strong oxidizer.Type: GrantFiled: March 16, 2001Date of Patent: June 17, 2003Assignee: Marantech Holding, LLCInventor: Marvin S. Antelman
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Dendrimer biocide-silver nanocomposites: their preparation and applications as potent antimicrobials
Publication number: 20030082133Abstract: A novel cationic dendrimer biocide-silver nanocomposite and methods for its use as a biocide. The biocidal nanocomposites of the present invention are effective against a variety of microbial species, including anthrax. The invention is also highly stable and safe for exposure to human skin. The invention has applications as an antibiological warfare agents, antimicrobial agent for surface coatings and as a general biocide that is safe for human exposure.Type: ApplicationFiled: December 4, 2002Publication date: May 1, 2003Inventors: Stuart L. Cooper, Chris Z. Chen -
Patent number: 6541038Abstract: A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.Type: GrantFiled: May 25, 2000Date of Patent: April 1, 2003Assignee: SDS Biotech K.K.Inventors: Keijitsu Tanaka, Hirobumi Aoki, Takashi Echigo
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Publication number: 20030049272Abstract: A pharmaceutical composition which reduces or eliminates the drug abuse potential of central nervous system stimulant comprising: (a) a central nervous system stimulant selected from the group consisting of methylphenidate, amphetamine, methamphetamine, and combinations thereof; and (b) a mucous membrane irritant selected from the group consisting of organic and inorganic acid, salt, ketone, nitrite, sulfide, bisulfate, persulfate, glycerophosphate, hypophosphate, borate, titanate, amino acid, peptide, and combinations thereof, wherein the mucous membrane irritant produces irritation when contacted with the skin or mucous membrane.Type: ApplicationFiled: August 30, 2001Publication date: March 13, 2003Inventors: Yatindra Joshi, Russell Somma
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Publication number: 20020132013Abstract: Disclosed herein are novel cautery devices, and methods and kits implementing the same. The disclosed devices are especially useful for localized delivery of a liquid caustic agent to treat various defects associated with malformations and injuries resulting in chronic or acute bleeding, or to ablate tumors, occlude fistulae or other luminal structures. The disclosed devices have uses in a number of medical disciplines, and specific examples are provided pertaining to treatment of defects, malformations, and injuries, or bleeding due to medical procedures, in and along the gastrointestinal tract.Type: ApplicationFiled: July 5, 2001Publication date: September 19, 2002Inventor: Harry Moulis
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Patent number: 6423331Abstract: Pyrogenically prepared silica doped with silver or silver oxide is prepared by feeding an aerosol into a flame such as is used for the preparation of pyrogenic silica, mixing the aerosol homogeneously with gas mixture before the reaction, then allowing the aerosol/gas mixture to react in a flame. The resulting pyrogenic silicas doped with silver or silver oxide are separated from the gas stream. The pyrogenic silica doped with silver or silver oxide by means of an aerosol can be used as a bactericidal filler.Type: GrantFiled: September 8, 2000Date of Patent: July 23, 2002Assignee: Degussa-Huls AGInventors: Helmut Mangold, Rainer Golchert
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Publication number: 20020073891Abstract: Methods of enhancing the photostabilizing of silver in medical materials are described. More particularly, the methods increase the photostabilization of silver in certain materials comprising hydrophilic, amphoteric and anionic polymers by subjecting the polymers to solutions containing an organic solvent and silver, during or after which one or more agents are added which facilitate the photostablization of the material.Type: ApplicationFiled: November 29, 2001Publication date: June 20, 2002Inventors: David Parsons, Elizabeth Jacques, Philip Bowler
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Patent number: 6383273Abstract: The invention relates to a process for producing compositions containing a biocidal compound or adsorbent and/or catalyst compound and the compositions thereof. The invention also relates to a method for reducing or eliminating the amount of a bioactive agent or contaminant from an environment by contacting the environment with the composition of for a sufficient time to reduce or eliminate the amount of the bioactive agent or contaminant in the environment.Type: GrantFiled: August 12, 1999Date of Patent: May 7, 2002Assignee: Apyron Technologies, IncorporatedInventors: Bryan E. Kepner, Eric A. Mintz
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Patent number: 6277414Abstract: The present invention relates to an aqueous decontaminating composition comprising (A) an amount of H2O2 less than or equal to 60% by weight, based on the total weight of said composition; (B) an RCO3H/RCO2H mixture, where R is methyl or ethyl, as indicated above, said mixture being present in an amount such that the weight ratio of said mixture to the hydrogen peroxide is between 0.15/1 and 0.85/1; (C) a silver component as a source of Ag ions, selected from the group consisting of silver salts and complexes, said silver component being present in an amount such that the weight ratio of said silver component to the hydrogen peroxide is between 0.0005/1 and 0.015/1; (D) a stabilizer present in an amount such that the weight ratio of said stabilizer to the hydrogen peroxide is between 0.0005/1 and 0.025/1; and water to make up to 100% by weight. It further relates to the method of preparation and to the use of said composition.Type: GrantFiled: September 22, 1998Date of Patent: August 21, 2001Assignee: SodifraInventors: Alain Elhaik, Raphaël Alex De Nicola
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Patent number: 6224898Abstract: An antimicrobial agent which is a composite composition of matter comprising a metal or metal-containing compound distributed on or in a dendritic polymer, and a method of treating wounds comprising applying to the wounds said antimicrobial agent. In a most preferred embodiment, said antimicrobial agent comprises discrete nanosized silver or silver containing compounds distributed on or in dendritic polymers.Type: GrantFiled: March 23, 2000Date of Patent: May 1, 2001Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Lajos Balogh, Gary L. Hagnauer, Donald A. Tomalia, Albert T. McManus
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Patent number: 6197814Abstract: A non-toxic environmentally friendly aqueous disinfectant is disclosed for specific use as prevention against contamination by potentially pathogenic bacteria and virus. The aqueous disinfectant is formulated by electrolytically generating silver ions in water in combination with a citric acid. The aqueous disinfectant may include a suitable alcohol and/or a detergent. The aqueous disinfectant has been shown to be very effective at eliminating standard indicator organisms such as staphylococcus aureus, samonella cholerasuis and Pseudomonas aeruginosa.Type: GrantFiled: October 9, 1998Date of Patent: March 6, 2001Assignee: NVID International, Inc.Inventor: Andrew B. Arata
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Patent number: 6197351Abstract: A method and composition for effecting chemical necrosis of a tissue lining of a mammalian body cavity, particularly a uterine endometrium, by delivering a caustic tissue necrosing composition, e.g., a silver nitrate and dextran paste, to the tissue to be necrosed and allowing the paste to remain in contact with the target tissue for a period of time sufficient to chemically necrose substantially the entirety of the tissue lining, and then contacting the caustic composition with a deactivating agent, e.g., an aqueous sodium chloride solution, thereby rendering the caustic composition non-caustic, and then rinsing the cavity. Compositions and methods for delivering medicaments are also disclosed.Type: GrantFiled: September 17, 1997Date of Patent: March 6, 2001Inventor: Robert S. Neuwirth
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Patent number: 6187346Abstract: A method and composition for effecting necrosis of a tissue lining of a mammalian body cavity, particularly a uterine endometrium, by introducing an applicator comprising a hysteroscope housing a first and a second catheter connected to a catheter into the uterus, distending the uterus by introducing CO2 gas under pressure, delivering a silver nitrate paste to the endometrium through the first catheter and allowing the paste to remain a sufficient amount of time to substantially cauterize the entirety of the tissue lining, particularly the endometrium and delivering an aqueous sodium chloride solution to the uterus through the second catheter thereby neutralizing the silver nitrate and rinsing the uterine cavity.Type: GrantFiled: July 15, 1997Date of Patent: February 13, 2001Assignee: Ablation Products, Inc.Inventor: Robert S. Neuwirth
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Patent number: 6093422Abstract: The present invention is directed to a biocidal water treatment composition, water treatment apparatus, and method of treating water to reduce levels of pathogens. The composition contains sources of copper, zinc, and silver metal ions within a crosslinked polymer matrix. Examples of these ion sources include copper sulfate, zinc sulfate, and silver nitrate. An example of the crosslinked polymer matrix is crosslinked chitosan, which also serves to clarify the water and release the metal ions over time. The product is easy to manufacture, and allows the use of decreased halogen sanitizer, as well as decreased copper ion, thereby decreasing the likelihood of staining. The product simultaneously provides good bactericidal and algaecidal properties, despite low levels of copper ion and low chlorine levels.Type: GrantFiled: June 16, 1998Date of Patent: July 25, 2000Assignee: Zodiac Pool Care, Inc.Inventors: Raymond P. Denkewicz, Jr., Ernest E. Senderov, Joseph W. Grenier
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Patent number: 5820918Abstract: A process for impregnating a medical device made from a water absorbable polymer material, e.g., a hydrogel, with a medical compound having low solubility in aqueous solutions, e.g., an antiseptic or radiopaque compound, is disclosed. The device is first infiltrated with an aqueous solution containing a first water soluble, ionizable compound, and subsequently infiltrated with an aqueous solution containing a second water soluble, ionizable compound. The ionizable compounds are selected such that they react after mutual contact to form the medical compound in-situ within the device.Type: GrantFiled: July 11, 1996Date of Patent: October 13, 1998Assignee: Hercules IncorporatedInventors: John M. Ronan, Samuel A. Thompson
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Patent number: 5736032Abstract: Biowaste treatment agents for treating biowastes in a manner which: (a) keeps noxious and toxic substances from being released from the biowaste, and (b) neutralizes such substances released during the course of stabilizing the biowaste. The treatment agents include a surfactant in an amount of from 1.0 to 99 percent of the treatment agent, a metal component in an amount from 0.5 to 85 percent of the treatment agent, the metal component including a source of zinc, or copper, or a combination of copper with aluminum or iron, and an aldehyde in an amount from 0.1 to 80 percent of the treatment agent.Type: GrantFiled: October 11, 1996Date of Patent: April 7, 1998Inventors: James P. Cox, Robert W. Duffy Cox
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Patent number: 5698229Abstract: An antimicrobial composition, characterized by containing an inorganic compound on which silver ion is supported and a compound represented by the following formula ?2!: ##STR1## wherein R.sup.1 is hydrogen or a lower alkyl group and R.sup.2 is hydrogen or an alkali metal.Type: GrantFiled: June 25, 1993Date of Patent: December 16, 1997Assignee: Toagosei Co., Ltd.Inventors: Shuichi Ohsumi, Hideki Kato
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Patent number: 5500230Abstract: The present invention relates to a method of treating cranial fluid volume dysfunctions such as glaucoma in an individual, comprising administering compounds which effect an increase in cyclic GMP at the site of the dysfunction or at the site of synthesis or removal of the accumulating fluid. In particular, the method of treatment involves the topical use of hydralazine, non-organic nitrites or nitroglycerine, and the systematic use of hydralazine or non-organic nitrites.Type: GrantFiled: April 7, 1993Date of Patent: March 19, 1996Assignee: The General Hospital CorporationInventor: James A. Nathanson
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Patent number: 5405644Abstract: A process for producing an antimicrobial fiber having a silver-containing inorganic microbicide characterized by using a treating solution for producing said fiber which contains a discoloration inhibitor represented by the following general formula: ##STR1## wherein R.sup.1 is hydrogen or a lower alkyl group and R.sup.2 is hydrogen or an alkali metal.Type: GrantFiled: November 3, 1993Date of Patent: April 11, 1995Assignee: Toagosei Chemical Industry Co., Ltd.Inventors: Shuichi Ohsumi, Hideki Kato
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Patent number: 5358722Abstract: Ferritin analogs comprising an apoferritin protein shell and a core substantially devoid of ferrihydrite, e.g. of inorganic composition such as aluminum hydroxide or organic composition such as acetaminophen. The protein shell can be removed from ferritin analog to produce spherules having a substantially monomodal nominal diameter between about 45 and 90 Angstroms.Type: GrantFiled: January 25, 1993Date of Patent: October 25, 1994Assignee: Monsanto CompanyInventor: Bruce F. Monzyk
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Patent number: 5180585Abstract: An antimicrobial composition comprising an inorganic particle with a first coating providing antimicrobial properties and a second coating providing a protective function, method for preparing the same and uses; further processes for producing polymeric articles and a method for controlling microorganisms.Type: GrantFiled: August 9, 1991Date of Patent: January 19, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Howard W. Jacobson, Michael H. Scholla, Sam L. Samuels