Patents by Inventor Gerald S. Koermer
Gerald S. Koermer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20080069743Abstract: Catalysts, systems and methods are described to reduce NOx emissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having an SCR catalyst comprising silver tungstate on an alumina support. The emissions treatment system may be used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines. An emissions treatment system may further comprise an injection device operative to dispense a hydrocarbon reducing agent upstream of the catalyst.Type: ApplicationFiled: September 20, 2006Publication date: March 20, 2008Inventors: Christopher R. Castellano, Ahmad Moini, Gerald S. Koermer, Howard Furbeck
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Publication number: 20080070778Abstract: Catalysts, systems and methods are described to reduce NOx emissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having a catalyst comprising silver and a platinum group metal on a particulate alumina support, the atomic fraction of the platinum group metal being less than or equal to about 0.25. Methods of manufacturing catalysts are described in which silver is impregnated on alumina particles.Type: ApplicationFiled: September 20, 2006Publication date: March 20, 2008Inventors: Christopher R. Castellano, Ahmad Moini, Gerald S. Koermer, Howard Furbeck, Steven J. Schmieg, Richard J. Blint
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Patent number: 7189454Abstract: A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used heretofore including but not limited to automotive and industrial paint applications.Type: GrantFiled: May 7, 2004Date of Patent: March 13, 2007Assignee: Engelhard CorporationInventors: Geoffrey M. Johnson, Steven A. Jones, Ahmad Moini, Gerald S. Koermer, William M. Jaglowski
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Patent number: 7182883Abstract: A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof. The concentration of free halogen in the solution will be: (a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.Type: GrantFiled: December 23, 2003Date of Patent: February 27, 2007Assignee: Engelhard CorporationInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Patent number: 7150854Abstract: The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaline earth metal chlorite, e.g., sodium chlorite, and a chemical reagent comprising an acid or a material capable of releasing an acid upon exposure to liquid water, e.g., sodium bisulfate. The chlorite and the reagent are either combined as a mixture or are disposed as separate components adhered to the surface of one or more substrates. Upon exposure to liquid water, the chlorite and the reagent produce boundary layers. The chlorite and the reagent are disposed upon, and adhered to, the surface(s) of the substrates in a manner such that upon exposure to liquid water, the chlorite boundary layer comes into contact with the reagent boundary layer to thereby produce an aqueous chlorine dioxide solution.Type: GrantFiled: March 19, 2002Date of Patent: December 19, 2006Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Barry K. Speronello, Linda Hratko
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Patent number: 7080505Abstract: A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position dependent portion of the wheel where VOC's including HC's are adsorbed while a heated atmosphere stream passes through a second position dependent regenerative portion of the wheel whereat VOC's are desorbed. The adsorbant is activated carbon having particles of micropore size adhered to the substrate by a silicone binder producing high adsorption efficiencies while withstanding relatively high regenerative heat temperatures resulting from exhaust gas sensible heat. A hydrocarbon senses HC in the desorbed heated atmosphere stream to rotatively and sequentially index pie shaped, segmented portions of the wheel into the wheel's regenerative region while also functioning as the main component of an OBD device for the system.Type: GrantFiled: July 8, 2003Date of Patent: July 25, 2006Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Jeffrey B. Hoke, Ronald M. Heck, Terence C. Poles, Edward T. Wolynic
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Publication number: 20040135116Abstract: A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof.Type: ApplicationFiled: December 23, 2003Publication date: July 15, 2004Applicant: ENGELHARD CORPORATIONInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Patent number: 6699404Abstract: A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof. The concentration of free halogen in the solution will be: (a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.Type: GrantFiled: June 17, 2002Date of Patent: March 2, 2004Assignee: Engelhard CorporationInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Publication number: 20040028815Abstract: Methods are disclosed for providing a library of composite or novel composition samples on a support. The method involves depositing one or more components as concentration gradients on the surface of the support. The concentration gradients are placed on the support in the form of superimposed triangles which allow ready formation of composite or composition samples containing three or more components. The samples can be removed from the support by drilling out portions of the coated support so as to yield individual tablets containing the support with one or more component layers thereon. By using this method, a vast number of samples can be made.Type: ApplicationFiled: July 1, 2003Publication date: February 12, 2004Applicant: ENGELHARD CORPORATIONInventors: Christopher R. Castellano, Ahmad Moini, Gerald S. Koermer
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Publication number: 20040020359Abstract: A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position dependent portion of the wheel where VOC's including HC's are adsorbed while a heated atmosphere stream passes through a second position dependent regenerative portion of the wheel whereat VOC's are desorbed. The adsorbant is activated carbon having particles of micropore size adhered to the substrate by a silicone binder producing high adsorption efficiencies while withstanding relatively high regenerative heat temperatures resulting from exhaust gas sensible heat. A hydrocarbon senses HC in the desorbed heated atmosphere stream to rotatively and sequentially index pie shaped, segmented portions of the wheel into the wheel's regenerative region while also functioning as the main component of an OBD device for the system.Type: ApplicationFiled: July 8, 2003Publication date: February 5, 2004Applicant: ENGELHARD CORPORATIONInventors: Gerald S. Koermer, Jeffrey B. Hoke, Ronald M. Heck, Terence C. Poles, Edward T. Wolynic
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Publication number: 20030180384Abstract: The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaine earth metal chlorite, e.g, sodium chlorite, and a chemical reagent comprising an acid or a material capable of releasing an acid upon exposure to liquid water, e.g., sodium bisulfate. The chlorite and the reagent are either combined as a mixture or are disposed as separate components adhered to the surface of one or more substrates. Upon exposure to liquid water, the chlorite and the reagent produce boundary layers. The chlorite and the reagent are disposed upon, and adhered to, the surface(s) of the substrates in a manner such that upon exposure to liquid water, the chlorite boundary layer comes into contact with the reagent boundary layer to thereby produce an aqueous chlorine dioxide solution.Type: ApplicationFiled: March 19, 2002Publication date: September 25, 2003Inventors: Gerald S. Koermer, Barry K. Speronello, Linda Hratko
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Publication number: 20030080317Abstract: A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof.Type: ApplicationFiled: June 17, 2002Publication date: May 1, 2003Applicant: Engelhard CorporationInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Patent number: 6548446Abstract: A selective catalytic material is used in a method for selective oxidation of carbon monoxide in the presence of hydrocarbons and contains rhodium and a bismuth component either as a supported catalytic material dispersed on a refractory inorganic oxide support or as an unsupported catalytic material prepared, for example, by co-precipitation from a solution containing dissolved bismuth and rhodium salts. The bismuth and rhodium components are present in amounts that provide an atomic ratio of bismuth to rhodium in the range of from about 0.1:1 to 10:1, e.g., from about 1:1 to 2.5:1. The selective catalytic material is contacted under oxidizing conditions with a gas stream containing carbon monoxide and hydrocarbons.Type: GrantFiled: July 2, 1997Date of Patent: April 15, 2003Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Linda Hratko
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Publication number: 20020172633Abstract: A vehicular atmosphere cleansing system utilizes a regenerative wheel having flow channels extending through the wheel coated with an adsorbant. An atmosphere stream passes through a first position dependent portion of the wheel where VOC's including HC's are adsorbed while a heated atmosphere stream passes through a second position dependent regenerative portion of the wheel whereat VOC's are desorbed. The adsorbant is activated carbon having particles of micropore size adhered to the substrate by a silicone binder producing high adsorption efficiencies while withstanding relatively high regenerative heat temperatures resulting from exhaust gas sensible heat. A hydrocarbon senses HC in the desorbed heated atmosphere stream to rotatively and sequentially index pie shaped, segmented portions of the wheel into the wheel's regenerative region while also functioning as the main component of an OBD device for the system.Type: ApplicationFiled: March 6, 2001Publication date: November 21, 2002Inventors: Gerald S. Koermer, Jeffrey B. Hoke, Ronald M. Heck, Terence C. Poles, Edward T. Wolynic
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Patent number: 6440900Abstract: Method for extending the life of cut flowers such as roses by bathing the stems of the flowers in a storage solution which contains chlorine dioxide. Also disclosed are compositions for use in the method.Type: GrantFiled: May 15, 2001Date of Patent: August 27, 2002Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Timothy D. Wldman
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Patent number: 6432322Abstract: Massive bodies for rapidly and safely preparing highly converted solutions of chlorine dioxide are disclosed. These massive bodies when added to water produce more chlorine dioxide than when the equivalent weights of the ingredients in powder form are added to water. The solutions produced by the addition of massive bodies to water are also disclosed. The concentration of chlorine dioxide in the solution is such that the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion is greater than 0.25:1 by weight.Type: GrantFiled: February 2, 2000Date of Patent: August 13, 2002Assignee: Engelhard CorporationInventors: Barry K. Speronello, Gerald S. Koermer, Appadurai Thangaraj, Ahmad Moini
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Patent number: 6087514Abstract: Disclosed are novel crystalline molecular sieves having the framework of ETS-10 titanium silicate which contain both octahedral and tetrahedral titanium atoms and are in acid form. The sieves are prepared by adding a complexing agent such as hydrogen peroxide during synthesis or by treating a synthesized titanium silicate molecular sieve with a reagent that replaces tetrahedral silicon with tetrahedral titanium atoms.Type: GrantFiled: October 20, 1998Date of Patent: July 11, 2000Assignee: Engelhard CorporationInventors: Appadurai Thangaraj, Steven M. Kuznicki, Gerald S. Koermer
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Patent number: 6019946Abstract: A catalytic structure may be in the form of a ceramic support member having disposed on it a catalytic material which is a fired coating (124a-1, 124a-2) of a catalytic ink. The catalytic ink contains a liquid vehicle, at least one metal resinate compound and fine particles of a refractory metal oxide having dispersed thereon a catalytically effective amount of a catalytic metal component such as platinum or palladium or combinations of two or more catalytic metal components. The resulting catalytic structure may be employed as a catalytic gas sensor (24, 124) and further may include at least one conductor member (130, 132) which provides both temperature sensing of the fired catalytic coating (124a-1, 124a-2) to ascertain the degree of reaction taking place at the surface thereof, and heating of the support member to heat the fired catalytic coating to a temperature high enough to promote the catalytic reaction.Type: GrantFiled: November 14, 1997Date of Patent: February 1, 2000Assignee: Engelhard CorporationInventors: Imelda L. Castillo, Gerald S. Koermer, Edward Balko
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Patent number: 5948683Abstract: A selective catalytic material is used to catalyze selective oxidation of unsaturated hydrocarbons, e.g., olefins, in the presence of carbon monoxide. The catalytic material comprises phosphated ceria containing from 0.1 to 20, preferably from 1 to 5, percent by weight phosphate component (calculated as elemental phosphorus). The phosphated ceria may be made by mixing particles of ceria and a solution containing phosphates to disperse the desired amount of phosphate component on the ceria and calcining the particles after separation of them from the solution. The resulting selective catalytic material is contacted under oxidizing conditions with a gas stream containing an oxidant, e.g., air, carbon monoxide and one or more unsaturated hydrocarbons.Type: GrantFiled: October 18, 1997Date of Patent: September 7, 1999Assignee: Engelhard CorporationInventors: Gerald S. Koermer, Ahmad Moini
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Patent number: 5906954Abstract: This invention relates to the preparation of novel titanium silicate molecular sieves with modified properties such as adsorption, ion-exchange and catalytic behavior by selective extraction of framework titanium atoms after synthesis of the sieves.Type: GrantFiled: October 13, 1998Date of Patent: May 25, 1999Assignee: Engelhard CorporationInventor: Gerald S. Koermer