Patents by Inventor David A. Ritchie
David A. Ritchie 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: 20140079808Abstract: Disclosure is provided for methods of preventing, removing or inhibiting microbial biofilm formation or microbial infection in a plant or plant part thereof, including applying thereto a treatment effective amount of an active compound as described herein, or an agriculturally acceptable salt thereof. Methods of enhancing a microbicide (e.g., including a copper, antibiotic, bacteriophage, etc.) and/or plant defense activator are also provided, including applying an active compound as described herein. Compositions comprising an active compound as described herein in an agriculturally acceptable carrier are also provided, and in some embodiments the compositions further include a microbicide (e.g., including copper, antibiotic, bacteriophage, etc.) and/or plant defense activator.Type: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: North Carolina State UniversityInventors: Christian Melander, John Cavanagh, David Ritchie, Robert W. Huigens, III, T. Eric Ballard, Justin J. Richards, Thomas W. Lindsey, Jonathan S. Lindsey
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Publication number: 20140013465Abstract: The present invention relates to genetically modified plants of the species Papaver bracteatum wherein the type or amount of one or more alkaloids produced by the plants has been modified. Specifically, the genetically modified plants have an increased expression of one or more of thebaine 6-O-demethylase, codeine O-demethylase and/or codeinone reductase relative to wild type P. bracteatum such that the genetically modified poppy plants produce an increased quantity of an alkaloid selected from codeine, oripavine and/or morphine relative to a wild type P. bracteatum. Also provided are progeny plants having the genetically modified poppy plants described above as a parent; mutant or derivative plants of the aforementioned plants; reproductive material derived from, straw produced from, straw concentrate produced from, latex derived from, or one or more isolated cells derived from, the aforementioned plants.Type: ApplicationFiled: March 15, 2013Publication date: January 9, 2014Applicant: TPI ENTERPRISES LTD.Inventors: Justin Taylor Coombs, Jarrod David Ritchie, Mark Alfred Tester, Damien Lightfoot, Deepa Jha
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Patent number: 8618149Abstract: Disclosure is provided for methods of preventing, removing or inhibiting microbial biofilm formation or microbial infection in a plant or plant part thereof, including applying thereto a treatment effective amount of an active compound as described herein, or an agriculturally acceptable salt thereof. Methods of enhancing a microbicide (e.g., including a copper, antibiotic, bacteriophage, etc.) and/or plant defense activator are also provided, including applying an active compound as described herein. Compositions comprising an active compound as described herein in an agriculturally acceptable carrier are also provided, and in some embodiments the compositions further include a microbicide (e.g., including copper, antibiotic, bacteriophage, etc.) and/or plant defense activator.Type: GrantFiled: August 31, 2012Date of Patent: December 31, 2013Assignee: North Carolina State UniversityInventors: Christian Melander, John Cavanagh, David Ritchie, Robert W. Huigens, III, T. Eric Ballard, Justin J. Richards, Thomas W. Lindsey, Jonathan S. Lindsey
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Publication number: 20130302377Abstract: Methods of treatment or prevention of a cancerous or pre-cancerous condition, of slowing or preventing growth of a cancerous condition, of stimulating a cell-mediated immune response, stimulating a Th1 helper T cell response against a pathogen in a mammal and of treating or preventing inflammatory diseases or disorders that involve administration of N-methyl pyrrolidone (NMP) or a physiologically acceptable salt, solvate, tautomer or prodrug thereof are provided. Also provided are formulations of an active agent.Type: ApplicationFiled: June 21, 2011Publication date: November 14, 2013Applicant: PETER MACCALLUM CANCER INSTITUTEInventors: Andy Kang-Wei Hsu, Jake Shortt, Paul Neeson, Ricky Wayne Johnstone, David Ritchie
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Publication number: 20120328577Abstract: Disclosure is provided for methods of preventing, removing or inhibiting microbial biofilm formation or microbial infection in a plant or plant part thereof, including applying thereto a treatment effective amount of an active compound as described herein, or an agriculturally acceptable salt thereof. Methods of enhancing a microbicide (e.g., including a copper, antibiotic, bacteriophage, etc.) and/or plant defense activator are also provided, including applying an active compound as described herein. Compositions comprising an active compound as described herein in an agriculturally acceptable carrier are also provided, and in some embodiments the compositions further include a microbicide (e.g., including copper, antibiotic, bacteriophage, etc.) and/or plant defense activator.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Inventors: Christian Melander, John Cavanagh, David Ritchie, Robert W. Huigens, III, T. Eric Ballard, Justin J. Richards, Thomas W. Lindsey, Jonathan S. Lindsey
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Patent number: 8338656Abstract: This invention pertains to separating an olefin stream into at least two olefin streams. The olefin stream that is to be separated is low in diene composition, which allows the olefin stream to be compressed at a relatively high temperature without causing fouling problems in the compressor system. The invention is particularly relevant to separating olefins obtained from an oxygen to olefins unit.Type: GrantFiled: October 1, 2007Date of Patent: December 25, 2012Assignees: Lummus Technology Inc., ExxonMobil Chemical Patents Inc.Inventors: David Ritchie Lumgair, Michael Peter Nicoletti, Ram Mallik, Wadie Malaty, Malcolm Pettigrew
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Patent number: 8278340Abstract: Disclosure is provided for methods of preventing, removing or inhibiting microbial biofilm formation or microbial infection in a plant or plant part thereof, including applying thereto a treatment effective amount of an active compound as described herein, or an agriculturally acceptable salt thereof. Methods of enhancing a microbicide (e.g., including a copper, antibiotic, bacteriophage, etc.) and/or plant defense activator are also provided, including applying an active compound as described herein. Compositions comprising an active compound as described herein in an agriculturally acceptable carrier are also provided, and in some embodiments the compositions further include a microbicide (e.g., including copper, antibiotic, bacteriophage, etc.) and/or plant defense activator.Type: GrantFiled: November 26, 2008Date of Patent: October 2, 2012Assignee: North Carolina State UniversityInventors: Christian Melander, John Cavanagh, David Ritchie, Robert W. Huigens, III, T. Eric Ballard, Justin J. Richards, Thomas W. Lindsey, Jonathan S. Lindsey
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Publication number: 20110306766Abstract: The present invention relates to a process for the preparation of an N-demethyl morphinane or a protected form thereof. In one form the preparation of the N-demethyl morphinane or a protected form thereof involves the N-demethylation of an N-methyl morphinane or protected form thereof. In particular the present process is useful in the preparation N-demethyl morphinane or a protected form thereof by N-demethylation of N-methyl morphinanes or protected forms thereof extracted from plants of the genus Papaver of the family Papaveraceae. An example of a suitable N-methyl morphinane that may be usefully subjected to the process of the present invention is thebaine.Type: ApplicationFiled: June 19, 2009Publication date: December 15, 2011Applicant: TPI Enterprises LtdInventors: Richard Bos, Jarrod David Ritchie
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Patent number: 7952564Abstract: A touch sensor method and device are described that allow one or more simultaneous touches to be sensed and mapped to Cartesian coordinates. The device utilizes closely spaced multiple conducting strips to provide digital location of a touch position according to the position strip and analog location along the length of the strip. When the strips are energized individually and in coordinated ways, multiple touches are individually sensed and their positions are reported.Type: GrantFiled: February 16, 2006Date of Patent: May 31, 2011Inventors: G. Samuel Hurst, Robert J. Warmack, Rufus H. Richie, Donald W. Bouldin, David Ritchie
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Publication number: 20110084031Abstract: Methods and systems for reducing a redox active contaminant in a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting redox active contaminant in the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements water dissociation technology. The oxyhydrogen gas generator involves applying a pulsed electrical signal to a series of closely spaced electrodes that are submerged in the waste stream to produce oxyhydrogen-rich gas from a water component of the waste stream. Operation of the oxyhydrogen gas generator in the waste stream may accomplish one or more unit processes for waste treatment, such as oxidation, stripping, floatation, disinfection, conditioning, stabilization, thickening, and dewatering, among others.Type: ApplicationFiled: October 15, 2010Publication date: April 14, 2011Applicant: Xogen Technologies Inc.Inventors: David Ritchie VAN VLIET, Hector Alvarez-Vazquez
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Publication number: 20110047653Abstract: The present invention relates to poppy cultivars and their use to produce thebaine. In specific forms, the present invention relates to cultivars of Papaver bracteatum that produce thebaine in the first growing season after germination.Type: ApplicationFiled: January 22, 2009Publication date: February 24, 2011Applicant: TPI Enterprises Ltd.Inventor: Jarrod David Ritchie
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Patent number: 7837882Abstract: Methods and systems for treating a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements water dissociation technology. The oxyhydrogen gas generator involves applying a pulsed electrical signal to a series of closely-spaced electrodes that are submerged in the waste stream to produce oxyhydrogen-rich gas from a water component of the waste stream. Operation of the oxyhydrogen gas generator in the waste stream may accomplish one or more unit processes for waste treatment, such as oxidation, stripping, floatation, disinfection, conditioning, stabilization, thickening, and dewatering, among others. At least a portion of the oxyhydrogen-rich gas can be conveyed for a second use in the waste treatment system, such as a source of combustible fuel for incineration or power generation, for example.Type: GrantFiled: November 30, 2006Date of Patent: November 23, 2010Assignee: Xogen Technologies Inc.Inventors: David Ritchie Van Vliet, Herbert Wallace Campbell, Stephen Barrie Chambers
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Publication number: 20100292521Abstract: This invention pertains to separating an olefin stream into at least two olefin streams. The olefin stream that is to be separated is low in diene composition, which allows the olefin stream to be compressed at a relatively high temperature without causing fouling problems in the compressor system. The invention is particularly relevant to separating olefins obtained from an oxygen to olefins unit.Type: ApplicationFiled: October 1, 2007Publication date: November 18, 2010Applicants: LUMMUS TECHNOLOGY INC., EXXON MOBIL CHEMICAL COMPANYInventors: David Ritchie Lumgair, Michael Peter Nicoletti, Ram Mallik, Wadie Malaty, Malcolm Pettigrew
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Patent number: 7678958Abstract: This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.Type: GrantFiled: September 30, 2002Date of Patent: March 16, 2010Assignee: ExxonMobil Chemical Patents IncInventors: Minquan Cheng, Jeffrey J. Phillips, Michael Peter Nicoletti, David Ritchie Lumgair, Jr., John Richard Shutt, Jeffrey Alan Kabin, Wilfried Borgmann, Josef Kunkel, Helmut Fritz, Roland Walzi, Gerhard Lauermann, Klaus Muller
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Publication number: 20090143230Abstract: Disclosure is provided for methods of preventing, removing or inhibiting microbial biofilm formation or microbial infection in a plant or plant part thereof, including applying thereto a treatment effective amount of an active compound as described herein, or an agriculturally acceptable salt thereof. Methods of enhancing a microbicide (e.g., including a copper, antibiotic, bacteriophage, etc.) and/or plant defense activator are also provided, including applying an active compound as described herein. Compositions comprising an active compound as described herein in an agriculturally acceptable carrier are also provided, and in some embodiments the compositions further include a microbicide (e.g., including copper, antibiotic, bacteriophage, etc.) and/or plant defense activator.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: North Carolina State UniversityInventors: Christian Melander, John Cavanagh, David Ritchie, Robert W. Huigens, III, T. Eric Ballard, Justin J. Richards, Thomas W. Lindsey, Jonathan S. Lindsey
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Patent number: 7385100Abstract: This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stream. The heating is conducted so that a majority of the metalloaluminophosphate molecular sieve catalyst contaminants is contained in the liquid stream. The vapor stream is separated from the liquid stream, and the separated vapor stream is contacted with the metalloaluminophosphate molecular sieve catalyst to form olefin product. The heating of the feedstream and the separation of the vapor stream can be carried out in one or more stages.Type: GrantFiled: April 16, 2007Date of Patent: June 10, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: James H. Beech, Jr., Cor F. Van Egmond, Ronald G. Searle, Michael Peter Nicoletti, David Ritchie Lumgair, Jr.
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Patent number: 7376515Abstract: There is provided herein a system and method of collecting, EM data in the context(s) of hydrocarbon exploration, appraisal, development, and surveillance, which provides improved ground coupling between the electrodes and the earth or surface ice and, as a consequence, a higher quality transmitted and received signal is obtained thereby. Where the surface of the ground is saturated and frozen (e.g., in the case of a survey conducted on sea ice or frozen tundra), the survey instruments (sources and receivers) may be coupled more faithfully to the surface by drilling or melting holes into the ice (or frozen tundra) and inserting electrodes into the resulting holes. Each hole may (or may not) be lined with material to retard the loss of water therefrom. Preferably, each of the holes (source and receiver) will be filled with water (fresh or salt) before data collection begins.Type: GrantFiled: July 7, 2006Date of Patent: May 20, 2008Assignee: BP Corporation North America Inc.Inventors: Michael Joseph Smith, Bryan David Ritchie, Leon Thomsen
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Patent number: 7323147Abstract: A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-volatiles and/or partial non-volatiles while at the same time maintaining the effluent at optimal temperature and pressure as a feed for oxygenate to olefin conversion.Type: GrantFiled: June 10, 2004Date of Patent: January 29, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: David Ritchie Lumgair, Jr., James H. Beech, Jr., Michael Peter Nicoletti
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Patent number: 7214843Abstract: This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stream. The heating is conducted so that a majority of the metalloaluminophosphate molecular sieve catalyst contaminants is contained in the liquid stream. The vapor stream is separated from the liquid stream, and the separated vapor stream is contacted with the metalloaluminophosphate molecular sieve catalyst to form olefin product. The heating of the feedstream and the separation of the vapor stream can be carried out in one or more stages.Type: GrantFiled: October 14, 2003Date of Patent: May 8, 2007Assignee: Exxon Mobil Chemical Patents Inc.Inventors: James H. Beech, Jr., Cor. F. Van Egmond, Ronald G. Searle, Michael Peter Nicoletti, David Ritchie Lumgair, Jr.
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Patent number: 7135604Abstract: The present invention is a process for removal of carbon dioxide from a reactor effluent stream comprising water, carbon dioxide and olefin(s), where a portion of the carbon dioxide is removed in a quenching step with a quench medium and more carbon dioxide is removed by contacting the quenched effluent stream with an alkaline stream. A portion of the alkaline stream is added to the quench medium.Type: GrantFiled: June 25, 2003Date of Patent: November 14, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zhong Yi Ding, James Richardson Lattner, David Ritchie Lumgair, Jr., Jeffrey Alan Kabin