Patents by Inventor Ross Miesem
Ross Miesem 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: 7713899Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: GrantFiled: July 3, 2006Date of Patent: May 11, 2010Assignee: Cabot CorporationInventors: Mark J. Hampden-Smith, Toivo T. Kodas, Paolina Atanassova, Rimple Bhatia, Ross A. Miesem, Paul Napolitano, Gordon L. Rice
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Patent number: 7696122Abstract: An electrocatalyst ink composition comprising a liquid vehicle, particles comprising at least one electrocatalyst metal, and at least one copolymer dispersant comprising at least one polyalkylene oxide segment.Type: GrantFiled: July 5, 2006Date of Patent: April 13, 2010Assignee: Cabot CorporationInventors: Matthew C. Ezenyilimba, Paolina Atanassova, Hanwei Lei, Ross A. Miesem, Ryan Cash Wall
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Patent number: 7642213Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: GrantFiled: August 14, 2006Date of Patent: January 5, 2010Assignee: Cabot CorporationInventors: Mark J. Hampden-Smith, Toivo T. Kodas, Paolina Atanassova, Rimple Bhatia, Ross A. Miesem, Paul Napolitano, Gordon L. Rice
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Publication number: 20080299431Abstract: A membrane electrode assembly comprises (a) a solid electrolyte polymer membrane; (b) an anode electrocatalyst layer disposed at one surface of the membrane and comprising a first electrocatalyst composition comprising carbon substrate particles and nanoparticles comprising an alloy of platinum and ruthenium disposed on the surface of the substrate particles; (c) a cathode electrocatalyst layer disposed at an opposite surface of the membrane, the cathode layer comprising a second electrocatalyst composition different from the first electrocatalyst composition and comprising carbon substrate particles and nanoparticles comprising platinum disposed on the surface of the substrate particles; and (d) gas diffusion layers disposed over each of the anode and cathode electrocatalyst layers.Type: ApplicationFiled: June 1, 2007Publication date: December 4, 2008Applicant: CABOT CORPORATIONInventors: Hanwei Lei, Paolina Atanassova, Ryan Cash Wall, Ross A. Miesem, Yipeng Sun, Gordon L. Rice
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Publication number: 20080075842Abstract: A process for preparing catalyst coated membranes and membrane electrode assemblies for use in direct methanol fuel cells is provided. Cathode and anode layers are formed by spraying catalyst-containing inks onto a novel framed electrolytic membrane to form a catalyst coated membrane. The spraying process optionally employs one or more masks, which carefully control where the catalyst-containing ink is deposited. Following application of the cathode and anode layers, diffusion layers are prepared and inserted onto the catalyst coated membranes, and pressed to form membrane electrode assemblies.Type: ApplicationFiled: September 22, 2006Publication date: March 27, 2008Applicant: Cabot CorporationInventors: James H. Brewster, Paolina Atanassova, Ross A. Miesem, Gregory A. Romney, Gordon L. Rice, Scott Olin Schmeits
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Publication number: 20080009409Abstract: An electrocatalyst ink composition comprising a liquid vehicle, particles comprising at least one electrocatalyst metal, and at least one copolymer dispersant comprising at least one polyalkylene oxide segment.Type: ApplicationFiled: July 5, 2006Publication date: January 10, 2008Applicant: CABOT CORPORATIONInventors: MATTHEW C. EZENYILIMBA, PAOLINA ATANASSOVA, HANWEI LEI, ROSS A. MIESEM, RYAN CASH WALL
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Publication number: 20060292434Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: ApplicationFiled: August 14, 2006Publication date: December 28, 2006Inventors: Mark Hampden-Smith, Toivo Kodas, Paolina Atanassova, Rimple Bhatia, Ross Miesem, Paul Napolitano, Gordon Rice
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Publication number: 20060269824Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: ApplicationFiled: July 3, 2006Publication date: November 30, 2006Inventors: Mark Hampden-Smith, Toivo Kodas, Paolina Atanassova, Rimple Bhatia, Ross Miesem, Paul Napolitano, Gordon Rice
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Patent number: 7098163Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: GrantFiled: April 16, 2003Date of Patent: August 29, 2006Assignee: Cabot CorporationInventors: Mark J. Hampden-Smith, Toivo T. Kodas, Paolina Atanassova, Rimple Bhatia, Ross A. Miesem, Paul Napolitano, Gordon L. Rice
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Publication number: 20040038808Abstract: Compositions and methods for the manufacture of electrodes for fuel cells. The compositions and methods are particularly useful for the manufacture of anodes and cathodes for proton exchange membrane fuel cells, particularly direct methanol fuel cells. The methods can utilize direct-write tools to deposit ink compositions and form functional layers of a membrane electrode assembly having controlled properties and enhanced performance.Type: ApplicationFiled: April 16, 2003Publication date: February 26, 2004Inventors: Mark J. Hampden-Smith, Toivo T. Kodas, Paolina Atanassova, Rimple Bhatia, Ross A. Miesem, Paul Napolitano, Gordon L. Rice
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Patent number: 6629367Abstract: A method for forming an electrically isolated via in a multilayer ceramic package and an electrical connection formed within the via are disclosed. The method includes punching a first via in a first layer, filling the first via with a cross-linkable paste, curing the paste to form an electrical insulator precursor and forming the via in the insulator precursor. The electrical connection formed includes an insulator made from a cross-linked paste supported by a substrate of a multilayer ceramic package and a conductive connection supported by the insulator.Type: GrantFiled: December 6, 2000Date of Patent: October 7, 2003Assignee: Motorola, Inc.Inventors: Jeremy W. Burdon, Ross A. Miesem, Chowdary Ramesh Koripella
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Patent number: 6620273Abstract: A multilayer ceramic micropump including a monolithic ceramic package formed of a plurality of ceramic layers defining therein an integrated first ball check valve, and a second ball check valve in microfluidic communication with the first ball check valve, and an actuator characterized as actuating a pumping motion, thereby pumping fluids through the first ball check valve and the second ball check valve.Type: GrantFiled: February 19, 2003Date of Patent: September 16, 2003Assignee: Motorola, Inc.Inventors: Xunhu Dai, Anthony M. Pavio, Ross A. Miesem
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Publication number: 20030123993Abstract: A multilayer ceramic micropump including a monolithic ceramic package formed of a plurality of ceramic layers defining therein an integrated first ball check valve, and a second ball check valve in microfluidic communication with the first ball check valve, and an actuator characterized as actuating a pumping motion, thereby pumping fluids through the first ball check valve and the second ball check valve.Type: ApplicationFiled: February 19, 2003Publication date: July 3, 2003Inventors: Xunhu Dai, Anthony M. Pavio, Ross A. Miesem
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Patent number: 6554591Abstract: A multilayer ceramic micropump including a monolithic ceramic package formed of a plurality of ceramic layers defining therein an integrated first ball check valve, and a second ball check valve in microfluidic communication with the first ball check valve, and an actuator characterized as actuating a pumping motion, thereby pumping fluids through the first ball check valve and the second ball check valve.Type: GrantFiled: November 26, 2001Date of Patent: April 29, 2003Assignee: Motorola, Inc.Inventors: Xunhu Dai, Anthony M. Pavio, Ross A. Miesem
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Publication number: 20030039841Abstract: An enhanced ceramic layer is produced for use in laminated ceramic devices. A layer of unfired ceramic material is provided and a coating of dielectric material (preferably alumina) is applied on at least one surface. The dielectric material forms a reaction barrier between excess glass forced to the surface during firing and metallization positioned on the coating. The coating can be applied by screen printing, spraying a slurry of dielectric material, or spraying a slurry of dielectric material and an adhesive allowing low pressure lamination.Type: ApplicationFiled: August 27, 2001Publication date: February 27, 2003Applicant: Motorola, Inc.Inventors: Ross A. Miesem, Kristen June Law, Jeremy W. Burdon, Rickey G. Pastor
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Publication number: 20020066593Abstract: A method for forming an electrically isolated via in a multilayer ceramic package and an electrical connection formed within the via are disclosed. The method includes punching a first via in a first layer, filling the first via with a cross-linkable paste, curing the paste to form an electrical insulator precursor and forming the via in the insulator precursor. The electrical connection formed includes an insulator made from a cross-linked paste supported by a substrate of a multilayer ceramic package and a conductive connection supported by the insulator.Type: ApplicationFiled: December 6, 2000Publication date: June 6, 2002Applicant: Motorola, Inc.Inventors: Jeremy W. Burdon, Ross A. Miesem, Chowdary Ramesh Koripella
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Publication number: 20010048888Abstract: Solder and a method of manufacturing the solder are disclosed wherein powdered free silver is added to a solder alloy with a particle size sufficient to preserve silver metallization during use and with a concentration sufficient to maximize the effectiveness and avoid adverse effects on solder reflow characteristics. Preferably, the particle size is in a range of approximately 5 &mgr;m to 20 &mgr;m and the powdered free silver is added in a concentration of approximately 5% to 10%.Type: ApplicationFiled: April 4, 2001Publication date: December 6, 2001Inventors: Rong-Fong Huang, Jian-Ku Shang, Ross A. Miesem
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Patent number: 6133175Abstract: Multiphase ceramic materials for use in multilayered device fabrication may be fabricated by providing novel glassy precursor materials of a preferred composition, with operable amounts of a non-glassy filler materials. The combined materials are fired at appropriate temperatures, so that a non-glassy anorthite type phase is formed. Material so fabricated is formed in a self-limiting process, in that reaction between the glassy precursor material and the non-glass filler material is terminated when one constituent of the glassy precursor material is fully consumed. The materials of the instant invention, fabricated according to the method disclosed herein, demonstrate excellent dielectric constant, and electrical loss characteristics.Type: GrantFiled: January 8, 1998Date of Patent: October 17, 2000Assignee: Motorola, Inc.Inventors: Shelly J. Bethke, Ross A. Miesem, Wayne W. Chiou, Rickey G. Pastor
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Patent number: 5877042Abstract: A method of producing a glass/metal package where a glass portion of the package is built up around a provided leadframe (10) using applications of solderable and glass pastes (20) which are subsequently fired (30). The glass paste and leadframe are chosen to have similar coefficients of expansion and the leadframe is pretreated to degasify and control oxidation of the metal to promote glass adhesion to the leadframe and prevent microcracking at a glass/metal interface. A seal ring is applied to the glass paste (40) and a lid is attached to the seal ring (50). The package is used to provide an sealed inert internal environment for sensitive electronic components such as a piezoelectric element. The package may be configured for leaded or surface mounting (60).Type: GrantFiled: August 28, 1996Date of Patent: March 2, 1999Assignee: Motorola, Inc.Inventors: John E. Mattson, William G. Skoda, Piyush Chaudhari, Joyce K. Yamamoto, Ross A. Miesem
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Patent number: 5821181Abstract: Multiphase ceramic materials for use in multilayered device fabrication may be fabricated by providing novel glassy precursor materials of a preferred composition, with operable amounts of a non-glassy filler materials. The combined materials are fired at appropriate temperatures, so that a non-glassy anorthite type phase is formed. Material so fabricated is formed in a self-limiting process, in that reaction between the glassy precursor material and the non-glass filler material is terminated when one constituent of the glassy precursor material is fully consumed. The materials of the instant invention, fabricated according to the method disclosed herein, demonstrate excellent dielectric constant, and electrical loss characteristics.Type: GrantFiled: April 8, 1996Date of Patent: October 13, 1998Assignee: Motorola Inc.Inventors: Shelly J. Bethke, Ross A. Miesem, Wayne W. Chiou, Rickey G. Pastor