Patents by Inventor David M. Lowe
David M. Lowe 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: 11939309Abstract: The invention provides an associative polymer, a powder, and a process for making a powder including, networking one or more associative polymers and one or more optional surfactants to form a wet gel, and forming a powder from the wet gel, wherein the associative polymer(s) have a weight average molecular weight of from about 10 kDa to about 2,000 kDa.Type: GrantFiled: October 16, 2020Date of Patent: March 26, 2024Assignee: Ecolab USA Inc.Inventors: Heqing Huang, David Jordan, Robert M. Lowe, Jeffrey Cramm, Weiguo Cheng, Mingli Wei
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Patent number: 9963078Abstract: A rack for a vehicle comprises a first bracket; a second bracket adapted to removably hang over the rear-most roll bar of a Jeep Wrangler; a longitudinally-extending support bar having a front end and a rear end, the front end attached to the first bracket and the rear end attached to the second bracket; and at least one hanger attached to the support bar and extending downwards, wherein each hanger has two hooks for supporting items to be carried on the hanger.Type: GrantFiled: August 18, 2015Date of Patent: May 8, 2018Inventors: Aaron E. Zimmermann, David M. Lowe
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Patent number: 8263519Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.Type: GrantFiled: December 18, 2008Date of Patent: September 11, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Christine N. Elia, Mohan Kalyanaraman, Michel A. Daage, Stephen H. Brown, Lei Zhang, Robert A. Crane, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, Jr.
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Patent number: 8216958Abstract: A method for hydrodesulfurizing FCC naphtha is described. More particularly, a Co/Mo metal hydrogenation component is loaded on a silica or modified silica support in the presence of organic ligand and sulfided to produce a catalyst which is then used for hydrodesulfurizing FCC naphtha. The silica support has a defined pore size distribution which minimizes olefin saturation.Type: GrantFiled: January 12, 2007Date of Patent: July 10, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Jason Wu, Chuansheng Bai, Thomas R. Halbert, Stuart L. Soled, Sabato Miseo, Jonathan M. McConnachie, Valery Sokolovskii, David M. Lowe, Anthony F. Volpe, Jr., Jun Han
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Patent number: 8216964Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: GrantFiled: July 31, 2008Date of Patent: July 10, 2012Assignee: Celanese International Corp.Inventors: Tao Wang, Leslie Wade, Ioan Nicolau, Yumin Liu, Victor Wong, Barbara Kimmich, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Karin Yaccato, Anthony Volpe
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Patent number: 8030240Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.Type: GrantFiled: December 18, 2008Date of Patent: October 4, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Christine N. Elia, Mohan Kalyanaraman, Lei Zhang, Michel A. Daage, Darden Sinclair, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, Jr.
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Publication number: 20100320123Abstract: A method for hydrodesulfurizing FCC naphtha is described. More particularly, a Co/Mo metal hydrogenation component is loaded on a silica or modified silica support in the presence of organic ligand and sulfided to produce a catalyst which is then used for hydrodesulfurizing FCC naphtha. The silica support has a defined pore size distribution which minimizes olefin saturation.Type: ApplicationFiled: January 12, 2007Publication date: December 23, 2010Inventors: Jason Wu, Chuansheng Bai, Thomas R. Halbert, Stuart L. Soled, Sabato Miseo, Jonathan M. Mcconnachie, Valery Sokolovskii, David M. Lowe, Anthony F. Volpe, JR., Jun Han
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Patent number: 7754165Abstract: An apparatus for use in parallel reaction of materials. The apparatus includes a base having a plurality of reaction wells, each of the reaction wells having a closed lower end and open upper end for receiving reactant materials. A cover is configured for sealing engagement with the base to form a housing enclosing the plurality of reaction wells and defining a common pressure chamber in communication with the reaction wells. The apparatus further includes an inlet port in communication with the pressure chamber for supplying pressurized fluid to the chamber to pressurize the reaction wells. The housing is configured to sustain a pressure substantially above atmospheric pressure.Type: GrantFiled: February 20, 2007Date of Patent: July 13, 2010Assignee: Symyx Solutions, Inc.Inventors: Lynn Van Erden, Howard Turner, David M. Lowe
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Publication number: 20100075831Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.Type: ApplicationFiled: December 18, 2008Publication date: March 25, 2010Inventors: Christine N. Elia, Mohan Kalyanaraman, Lei Zhang, Michel A. Daage, Darden Sinclair, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, JR.
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Patent number: 7615509Abstract: Supported metallic catalysts comprised of a Group VIII metal, a Group VIB metal, and an organic additive, and methods for synthesizing supported metallic catalysts are provided. The catalysts are prepared by a method wherein precursors of both metals are mixed and interacted with at least one organic additive, dried, calcined, and sulfided. The catalysts are used for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.Type: GrantFiled: October 11, 2007Date of Patent: November 10, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: Chuansheng Bai, EL-Mekki El-Malki, Jeff Elks, Zhiguo Hou, Jon M. McConnachie, Pallassana S. Venkataraman, Jason Wu, Peter W. Jacobs, Jun Han, Daniel M. Giaquinta, Alfred Hagemeyer, Valery Sokolovskii, Anthony F. Volpe, Jr., David M. Lowe
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Patent number: 7612014Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: GrantFiled: July 31, 2008Date of Patent: November 3, 2009Assignee: Celanese International Corp.Inventors: Tao Wang, Leslie Wade, Ioan Nicolau, Yumin Liu, Victor Wong, Barbara Kimmich, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Karin Yaccato, Anthony Volpe
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Patent number: 7598198Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: GrantFiled: July 31, 2008Date of Patent: October 6, 2009Assignee: Calanese International Corp.Inventors: Tao Wang, Leslie Wade, Ioan Nicolau, Yumin Liu, Victor Wong, Barbara Kimmich, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Karin Yaccato, Anthony Volpe
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Publication number: 20090176643Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.Type: ApplicationFiled: December 18, 2008Publication date: July 9, 2009Inventors: Christine N. Elia, Mohan Kalyanaraman, Michel A. Daage, Stephen H. Brown, Lei Zhang, Robert A. Crane, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, JR.
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Patent number: 7556966Abstract: A method for reacting a plurality of materials in parallel within a reactor vessel having a plurality of reaction wells formed therein. Each of the reaction wells has an open end exposed to a common pressure chamber defined by the reactor vessel. The method includes opening a cover of the reactor vessel, inserting components into the reaction wells, closing the cover of the reactor vessel to create a sealed chamber, supplying a gas substantially above atmospheric pressure that reacts with the components within the reaction wells, and releasing pressure from the reactor vessel.Type: GrantFiled: February 27, 2006Date of Patent: July 7, 2009Assignee: Symyx Technologies, Inc.Inventors: Lynn Van Erden, Howard Turner, David M. Lowe
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Patent number: 7550637Abstract: A selective hydrogenation catalyst composition comprises at least two different metal components selected from Groups 8 to 10 of the Periodic Table of Elements, one of which may be rhodium, and at least one metal component selected from Group 13 of the Periodic Table of Elements, such as indium.Type: GrantFiled: August 15, 2005Date of Patent: June 23, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: David M. Lowe, Michel Molinier, John D. Y. Ou, Michael A. Risch, Anthony F. Volpe, Jr., Jeffrey C. Yoder
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Patent number: 7503515Abstract: Methods and apparatus for combinatorial (i.e., high-throughput) materials research, such as catalysis research, that involves parallel apparatus for simultaneously effecting mechanical treatments such as grinding, mixing, pressing, crushing, sieving, and/or fractionating of such materials are disclosed. The methods and apparatus are useful for mechanically treating catalysis materials and other solid materials, including without limitation, electronic materials such as phosphors, colorants such as pigments, and pharmaceuticals such as crystalline drugs or drug candidates. The simultaneous protocols and parallel apparatus offer substantial improvements in overall throughput for preparing arrays of materials, such as catalysis materials.Type: GrantFiled: September 11, 2006Date of Patent: March 17, 2009Assignee: Symyx Technologies, Inc.Inventors: Claus G. Lugmair, Alfred Hagemeyer, Lynn Van Erden, Anthony F. Volpe, Jr., David M. Lowe, Yumin Liu
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Patent number: 7462751Abstract: A selective hydrogenation catalyst composition comprises a support; a first metal component comprising rhodium; and a second metal component comprising a metal other than rhodium and selected from Groups 1 to 15 of the Periodic Table of Elements, wherein said first and second components are predominantly contained in an outer surface layer of the support having a depth of not more than 1000 microns.Type: GrantFiled: August 26, 2005Date of Patent: December 9, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: David M. Lowe, Michel Molinier, John D. Y. Ou, Michael A. Risch, Anthony F. Volpe, Jr., Jeffrey C. Yoder, Valery Sokolovskii
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Publication number: 20080287290Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: ApplicationFiled: July 31, 2008Publication date: November 20, 2008Inventors: Tao Wang, Les Wade, Ioan Nicolau, Barbara Kimmich, Victor Wong, Yumin Liu, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Anthony Volpe, Karin Yaccato
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Publication number: 20080287285Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: ApplicationFiled: July 31, 2008Publication date: November 20, 2008Inventors: Tao Wang, Les Wade, Ioan Nicolau, Barbara Kimmich, Victor Wong, Yumin Liu, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Anthony Volpe, Karin Yaccato
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Publication number: 20080287289Abstract: The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material.Type: ApplicationFiled: July 31, 2008Publication date: November 20, 2008Inventors: Tao Wang, Les Wade, Ioan Nicolau, Barbara Kimmich, Victor Wong, Yumin Liu, Jun Han, Valery Sokolovskii, Alfred Hagemeyer, David M. Lowe, Anthony Volpe, Karin Yaccato