Patents by Inventor Deborah Haitko
Deborah Haitko 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: 20070228331Abstract: The invention provides a composition comprising a phosphor and a Q-containing silicone; an encapsulant formulation comprising a phosphor and a Q-containing silicone; and a device including an optoelectronic device such as LED, a phosphor, and a Q-containing silicone. The Q-containing silicone passes thermal shock condition of up to 150° C., and has many suitable properties such as transparency and viscosity to function as a phosphor binder.Type: ApplicationFiled: March 28, 2006Publication date: October 4, 2007Inventors: Deborah Haitko, John Leman
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Publication number: 20050282976Abstract: An encapsulant composition is provided. The composition includes an epoxy composition including at least two siloxane repeat units and a curing agent. The encapsulant composition is particularly suited for encapsulating light emitting diode components.Type: ApplicationFiled: June 22, 2004Publication date: December 22, 2005Inventors: Deborah Haitko, Donald Buckley
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Publication number: 20050282975Abstract: An encapsulant composition is provided. The composition includes an epoxy composition including at least a silicone epoxy of the general formula: MaM?bDcD?dTeT?fQg wherein a, b, c, d, e, f, and g are independently integers of zero or above, and wherein the sum of b, d, and f is one or greater; M is R13SiO1/2; M? is (Z)R22SiO1/2; D is R32SiO2/2; D? is (Z)R4SiO2/2; T is R5SiO3/2; and T? is (Z)SiO3/2; Q is SiO4/2 and R1, R2, R3, R4, R5 are independently selected from the group consisting of H, C1-22 alkyl, C1-22 alkoxy, C2-22 alkenyl, C6-14 aryl, C6-22 alkyl substituted aryl, C6-22 arylalkyl, aminoalkyls, and mixtures thereof; and Z, independently at each occurrence, is an organic radical containing an epoxy group, a curing agent, and a filler. The composition is substantially free of Pt.Type: ApplicationFiled: June 22, 2004Publication date: December 22, 2005Inventors: Deborah Haitko, Slawomir Rubinsztajn
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Publication number: 20050097941Abstract: A gas sensor device including a semiconductor substrate; one or more catalytic gate-electrodes deposited on a surface of the semiconductor substrate; one or more ohmic contacts deposited on the surface of the semiconductor substrate and a passivation layer deposited on at least a portion of the surface; wherein the semiconductor substrate includes a material selected from the group consisting of silicon carbide, diamond, Group III nitrides, alloys of Group III nitrides, zinc oxide, and any combinations thereof.Type: ApplicationFiled: November 12, 2003Publication date: May 12, 2005Inventors: Peter Sandvik, Vinayak Tilak, Jesse Tucker, Stanton Weaver, David Shaddock, Jonathan Male, John Lemmon, Mark Woodmansee, Venkatesan Manivannan, Deborah Haitko
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Publication number: 20050008865Abstract: A curable epoxy formulation comprising at least one epoxy monomer, at least one organofunctionalized colloidal silica, at least one alkyl onium cure catalyst, and optional reagents is provided in the present invention. Also disclosed are a packaged solid state device comprising an encapsulant comprising the aforementioned curable epoxy formulation.Type: ApplicationFiled: July 7, 2003Publication date: January 13, 2005Inventors: Slawomir Rubinsztajn, Deborah Haitko
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Patent number: 6008374Abstract: A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48 to 250.degree. C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.Type: GrantFiled: March 15, 1999Date of Patent: December 28, 1999Assignee: General Electric CompanyInventors: Brent Dellacoletta, Roy Ray Odle, Thomas L. Guggenheim, Ronald A. Greenberg, James P. Barren, Joseph A. King, Sunita Singh Baghel, Deborah A. Haitko, David G. Hawron
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Patent number: 5936099Abstract: A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48 to 250.degree. C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.Type: GrantFiled: November 4, 1997Date of Patent: August 10, 1999Assignee: General Electric Co.Inventors: Brent Dellacoletta, Roy Ray Odle, Thomas L. Guggenheim, Ronald A. Greenberg, James P. Barren, Joseph A. King, Sunita Singh Baghel, Deborah A. Haitko, David G. Hawron
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Patent number: 5719295Abstract: A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48.degree. to 250.degree. C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.Type: GrantFiled: May 23, 1996Date of Patent: February 17, 1998Assignee: General Electric CompanyInventors: Brent Dellacoletta, Roy Ray Odle, Thomas L. Guggenheim, Ronald A. Greenberg, James P. Barren, Joseph A. King, Sunita Singh Baghel, Deborah A. Haitko, David G. Hawron
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Patent number: 5575926Abstract: A method for significantly improving the dechlorination of chlorinated hydrocarbon compounds is disclosed. The method involves admixing preformed ferrous citrate with chlorinated hydrocarbon contaminated aqueous compositions both in situ and ex situ. The use of ferrous citrate decreases the oxidation potential of the Fe.sup.+2 /Fe.sup.+3 redox couple to cause oxidation by the chlorinated hydrocarbon with its concomitant reduction, thereby generating chloride ion.Type: GrantFiled: March 28, 1994Date of Patent: November 19, 1996Assignee: General Electric CompanyInventors: Deborah A. Haitko, Gerald R. Eykholt
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Patent number: 5536846Abstract: A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48.degree. to 250.degree. C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.Type: GrantFiled: May 27, 1994Date of Patent: July 16, 1996Assignee: General Electric CompanyInventors: Brent Dellacoletta, Roy R. Odle, Thomas L. Guggenheim, Ronald A. Greenberg, James P. Barren, Joseph A. King, Sunita S. Baghel, Deborah A. Haitko, David G. Hawron
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Patent number: 5391305Abstract: A process for dehalogenating hydrocarbon compounds that contaminate aqueous compositions is disclosed. The process admixes the contaminated aqueous composition with ferrous oxide. The use of citric acid in the reaction is optional. The reaction can be performed in situ and ex situ on contaminated groundwaters, ponds and streams.Type: GrantFiled: June 15, 1994Date of Patent: February 21, 1995Assignee: General Electric CompanyInventor: Deborah A. Haitko
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Patent number: 5382736Abstract: 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 hydrogenation catalyst, such as palladium supported on carbon, and water.Type: GrantFiled: May 3, 1993Date of Patent: January 17, 1995Assignee: General Electric CompanyInventors: Sunita S. Baghel, Deborah A. Haitko
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Patent number: 5362404Abstract: A process for dehalogenating hydrocarbon compounds that contaminate aqueous compositions is disclosed. The process admixes the contaminated aqueous composition with ferrous oxide and citric acid. The reaction can be performed in situ and ex situ on contaminated groundwaters, ponds and streams.Type: GrantFiled: April 4, 1994Date of Patent: November 8, 1994Assignee: General Electric CompanyInventor: Deborah A. Haitko
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Patent number: 5362402Abstract: A process for significantly improving the rate of dehalogenation of aqueous compositions contaminated with halogenated hydrocarbon compounds is disclosed. The process involves admixing the contaminated aqueous composition with metallic iron in the presence of citric acid both in-situ and ex-situ. The use of citric acid as an additive in the reaction substantially increases the rate of iron-induced dechlorination of chlorinated hydrocarbons, such as trichloroethylene.Type: GrantFiled: March 25, 1994Date of Patent: November 8, 1994Assignee: General Electric CompanyInventors: Deborah A. Haitko, Sunita S. Baghel, Patricia D. Mackenzie
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Patent number: 5132423Abstract: Reactions between a solid polar and a non-polar compound, especially nucleophilic aromatic substitution reactions between an alkali metal salt of a hydroxyaromatic compound or thio analog thereof and an activated halo- or nitro-substituted aromatic compound, are conducted in a non-polar organic solvent such as toluene or xylene, in the presence of a hexaalkylguanidinium or .alpha.,.omega.-bis(pentaalkylguanidinium)alkane salt, or a corresponding heterocyclic salt, as a phase transfer catalyst. The method is particularly useful for the preparation of bisimides from bisphenol A or 4,4'-biphenol salts and 4-nitro- or 4-halophthalimides.Type: GrantFiled: March 13, 1991Date of Patent: July 21, 1992Assignee: General Electric CompanyInventors: Daniel J. Brunelle, Deborah A. Haitko, James P. Barren, Sunita Singh
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Patent number: 5068352Abstract: Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving terephthalic acid and acylated derivatives of 4-hydroxybenzoic acid and of certain bisimidodiphenols, or from the free bisimidodiphenol and aryl esters of the acids. In addition to being liquid crystalline, the polyesterethermides are crystalline in the solid state and have relatively high glass transition temperatures.Type: GrantFiled: October 31, 1990Date of Patent: November 26, 1991Assignee: General Electric CompanyInventors: David N. Schissel, Deborah A. Haitko
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Patent number: 5034540Abstract: Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving hydroquinone, 4,4'-biphenol or 2,6-dihydroxynaphthalene and esters of certain bisimidodicarboxylic acids, or from the free bisimidodicarboxylic acids and esters of the dihydroxyaromatic compounds. In addition to being liquid crystalline, the polyesteretherimides are crystalline in the solid state and have relatively high glass transition temperatures.Type: GrantFiled: September 17, 1990Date of Patent: July 23, 1991Assignee: General Electric CompanyInventors: Deborah A. Haitko, David N. Schissel
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Patent number: 4988792Abstract: Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving terephthalic acid and acylated derivatives of 4-hydroxybenzoic acid and of certain bisimidodiphenols, or from the free bisimidodiphenol and aryl esters of the acids. In addition to being liquid crystalline, the polyesteretherimides are crystalline in the solid state and have relatively high glass transition temperatures.Type: GrantFiled: January 19, 1990Date of Patent: January 29, 1991Assignee: General Electric CompanyInventors: David N. Schissel, Deborah A. Haitko
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Patent number: 4988821Abstract: Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving hydroquinone, 4,4'-biphenol or 2,6-dihydroxynaphthalene and esters of certain bisimidodicarboxylic acids, or from the free bisimidodicarboxylic acids and esters of the dihydroxyaromatic compounds. In addition to being liquid crystalline, the polyesteretherimides are crystalline in the solid state and have relatively high glass transition temperatures.Type: GrantFiled: August 23, 1989Date of Patent: January 29, 1991Assignee: General Electric CompanyInventors: Deborah A. Haitko, David N. Schissel
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Patent number: 4864015Abstract: A method is provided for making 9,10-dithiaanthracene-2,3,6,7-tetracarboxylic acid dianhydride. Polyimides having improved oxidative stability also are provided which can be made intercondensing organic diamine and the aforementioned dianhydride or a dianhydride mixture.Type: GrantFiled: November 21, 1988Date of Patent: September 5, 1989Assignee: General Electric CompanyInventors: James A. Cella, Deborah A. Haitko