Patents by Inventor David James Miller
David James Miller 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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Patent number: 6362367Abstract: This invention relates to a process for producing one or more organic acids in high purity which process comprises (i) oxidizing in a liquid oxidation reactor one or more organic liquids with essentially pure oxygen or oxygen-enriched air containing at least about 50% oxygen, at a temperature sufficiently stable to prevent cycling of reaction rate, to produce a crude reaction product fluid, and (ii) refining said crude reaction product fluid to give said one or more organic acids in high purity. The oxidation temperature is preferably controlled to within about ±3° C. of a target temperature. The organic acids described herein is useful in a variety of applications, such as intermediates in the manufacture of chemical compounds, pharmaceutical manufacture and the like.Type: GrantFiled: April 21, 1998Date of Patent: March 26, 2002Assignee: Union Carbide Chemicals & Plastics Technology Corp.Inventors: John Braithwaite, David Robert Bryant, David James Miller, John Earl Logsdon
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Patent number: 6350819Abstract: This invention relates to dendritic macromolecules and their use in metal-dendritic macroligand complex catalyzed processes, e.g., hydroformylation. The use of metal-dendritic macroligand complex catalysts in such processes facilitates the separation of desired product from catalyst, for example, by membrane filtration.Type: GrantFiled: October 27, 2000Date of Patent: February 26, 2002Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Michael Leo Tulchinsky, David James Miller
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Publication number: 20020010364Abstract: This invention relates to a process for producing one or more organic acids in high purity which process comprises (i) oxidizing in a liquid oxidation reactor one or more organic liquids with essentially pure oxygen or oxygen-enriched air containing at least about 50% oxygen, at a temperature sufficiently stable to prevent cycling of reaction rate, to produce a crude reaction product fluid, and (ii) refining said crude reaction product fluid to give said one or more organic acids in high purity. The oxidation temperature is preferably controlled to within about ±3° C. of a target temperature. The organic acids described herein is useful in a variety of applications, such as intermediates in the manufacture of chemical compounds, pharmaceutical manufacture and the like.Type: ApplicationFiled: April 21, 1998Publication date: January 24, 2002Inventors: JOHN BRAITHWAITE, DAVID ROBERT BRYANT, DAVID JAMES MILLER, JOHN EARL LOGSDON
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Patent number: 6310260Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more polar solvents and one or more nonpolar solvents by phase separation wherein (i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.Type: GrantFiled: March 15, 2000Date of Patent: October 30, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher
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Patent number: 6307110Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, one or more nonpolar solvents and one or more polar solvents by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1which is a value greater than about 2.5, (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.Type: GrantFiled: March 15, 2000Date of Patent: October 23, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant, Ailene Gardner Phillips, Brian Michael Roesch, John Robert Briggs, Max Min Lee, John Michael Maher
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Patent number: 6307108Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophoshorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a nonpolar solvent and a polar solvent by phase separation wherein (i) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5 (ii) the selectivity of the nonpolar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.Type: GrantFiled: March 15, 2000Date of Patent: October 23, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant
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Patent number: 6303830Abstract: This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated ester reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more organophosphorus ligand degradation products, said one or more reaction byproducts, said one or more products, a polar solvent and a nonpolar solvent by phase separation wherein(i) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more products is expressed by a partition coefficient ratio Ef1 which is a value greater than about 2.5, (ii) the selectivity of the polar phase for the organophosphorus ligand with respect to the one or more organophosphorus ligand degradation products is expressed by a partition coefficient ratio Ef2 which is a value greater than about 2.Type: GrantFiled: March 15, 2000Date of Patent: October 16, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John Nicholas Argyropoulos, Jeffrey Scott Kanel, Michael Leo Tulchinsky, David James Miller, Donald Lee Morrison, Paul Foley, David Robert Bryant
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Patent number: 5926811Abstract: A statistical thesaurus is built dynamically, from the same text collection that is being searched, allowing improved generation of expanded query terms. The thesaurus is dynamic in that thesaurus records are collected, ranked, accessed, and applied dynamically. Thesaurus "records" are actually formed as indexed documents arranged in "collections". The collections are preferably distinguished based on text source (court cases versus news wires versus patents, and so forth). Each record has terms assembled in indexed groups (or segments) which inherently reflect a ranking based on relevance to an initial query. After an initial query is received, the appropriate collection(s) of records may be searched by a conventional search and retrieval engine, the searches inherently returning records ranked by degree of relevance due to the record indexing scheme. A record ranking scheme avoids contamination of relevant records by less relevant records.Type: GrantFiled: March 15, 1996Date of Patent: July 20, 1999Assignee: Lexis-NexisInventors: David James Miller, Xin Allan Lu, John David Holt
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Patent number: 5819260Abstract: A phrase recognition method breaks streams of text into text "chunks" and selects certain chunks as "phrases" useful for automated full text searching. The phrase recognition method uses a carefully assembled list of partition elements to partition the text into the chunks, and selects phrases from the chunks according to a small number of frequency based definitions. The method can also incorporate additional processes such as categorization of proper names to enhance phrase recognition. The method selects phrases quickly and efficiently, referring simply to the phrases themselves and the frequency with which they are encountered, rather than relying on complex, time-consuming, resource-consuming grammatical analysis, or on collocation schemes of limited applicability, or on heuristical text analysis of limited reliability or utility.Type: GrantFiled: January 22, 1996Date of Patent: October 6, 1998Assignee: Lexis-NexisInventors: Xin Allan Lu, David James Miller, John Richard Wassum
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Patent number: 5782690Abstract: A damper door system that includes an opening in a planar wall, a retractable damper door and a track extending through said opening. The damper door includes slots that are conformable to the track when the door is in a closed position. In addition, the slots in the damper door include an intumescent material for sealing the door shut in the event of a fire.Type: GrantFiled: June 6, 1997Date of Patent: July 21, 1998Assignee: International Business Machines CorporationInventors: Bradley Kent Gustafson, Robert Arthur Horr, David James Miller, Frederick Charles Ringer, Jr., Conrad Wexelblatt
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Patent number: 5771378Abstract: An associative text search and retrieval system uses one or more front end processors to interacting with a network having one or more user terminals connected thereto to allow a user to provide information to the system and receive information from the system. The system also includes storage for a plurality of text documents, and at least one processor, coupled to the front end processors and the document storage. The processor(s) search the text documents according to a search request provided by the user and provide to the front end processor a predetermined number of retrieved documents containing at least one term of the search request. The retrieved documents have higher ranks than documents not provided to the front end processor. The ranks are calculated using a formula that varies according to the square of the frequency in each of the text documents of each of the search terms.Type: GrantFiled: June 7, 1995Date of Patent: June 23, 1998Assignee: Reed Elsevier, Inc.Inventors: John Holt, David James Miller, X. Allan Lu, Ray Daley, Minh Doan, Richard G. Graham, Catherine Leininger, Darin W. McBeath, Thomas Pease, Stephen M. Sever, Dale Waddell, Franz Weckesser
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Patent number: 5761497Abstract: An associative text search and retrieval system uses one or more front end processors to interacting with a network having one or more user terminals connected thereto to allow a user to provide information to the system and receive information from the system. The system also includes storage for a plurality of text documents, and at least one processor, coupled to the front end processors and the document storage. The processor(s) search the text documents according to a search request provided by the user and provide to the front end processor a predetermined number of retrieved documents containing at least one term of the search request. The retrieved documents have higher ranks than documents not provided to the front end processor.Type: GrantFiled: June 7, 1995Date of Patent: June 2, 1998Assignee: Reed Elsevier, Inc.Inventors: John Holt, David James Miller, Ray Daley, Thomas Pease
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Patent number: 5692176Abstract: An associative text search and retrieval system uses one or more front end processors to interacting with a network having one or more user terminals connected thereto to allow a user to provide information to the system and receive information from the system. The system also includes storage for a plurality of text documents, and at least one processor, coupled to the front end processors and the document storage. The processor(s) search the text documents according to a search request provided by the user and provide to the front end processor a predetermined number of retrieved documents containing at least one term of the search request. The retrieved documents have higher ranks than documents not provided to the front end processor. The ranks are calculated using a formula that varies according to the square of the frequency in each of the text documents of each of the search terms.Type: GrantFiled: November 22, 1993Date of Patent: November 25, 1997Assignee: Reed Elsevier Inc.Inventors: John Holt, David James Miller, X. Allen Lu, Ray Daley, Minh Doan, Richard G. Graham, Catherine Leininger, Darin W. McBeath, Thomas Pease, Steven M. Sever, Dale Waddell, Franz Weckesser
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Patent number: D429281Type: GrantFiled: October 13, 1999Date of Patent: August 8, 2000Inventors: David James Miller, Sarah Anne Miller