Patents by Inventor Stephen Campbell
Stephen Campbell 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: 11811056Abstract: Provided is an improved method for forming a coated lithium ion cathode materials specifically for use in a battery. The method comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor and a coating metal is added to the oxide precursor. The oxide precursor is heated to form the coated lithium ion cathode material.Type: GrantFiled: April 15, 2019Date of Patent: November 7, 2023Assignee: Nano One Materials Corp.Inventors: Stephen Campbell, Elahe Talaie
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Publication number: 20230246175Abstract: Provided is an improved method for forming a coated lithium ion cathode materials specifically for use in a battery. The method comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor and a coating metal is added to the oxide precursor. The oxide precursor is heated to form the coated lithium ion cathode material.Type: ApplicationFiled: February 23, 2023Publication date: August 3, 2023Inventors: Stephen Campbell, Elahe Talaie
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Publication number: 20220159910Abstract: Provided herein is a computer-implemented method of managing plant data. The method includes storing first plant data on a user device connected to a server. The first plant data relates to growth of a plant in a first grower device. The method also includes collecting second plant data related to growth of the plant in a second grower device. The second grower device is for growth of the plant moved from the first grower device. The second plant data is collected by the second grower device. The method also includes transferring the first plant data and the second plant data to the server. The method also includes displaying the first plant data and the second plant data on the user device.Type: ApplicationFiled: November 24, 2021Publication date: May 26, 2022Inventors: Bjorn Dawson, Jason Kent, Stephen Campbell, Bruno Alfano-Rizzo
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Patent number: 11246684Abstract: There is described a dental prosthesis for forming a friction fit attachment to a dental implant or dental connector. The prosthesis comprises a release device comprising a release member that is movable relative to the prosthesis from a first position to a second position. When the release member is in the first position the release device is not operable to impart a separating force to a friction fit attachment between the implant or connector and the prosthesis and when the release member is in the second position the release device is operable to impart a separating force to a friction fit attachment between the implant or connector and the prosthesis.Type: GrantFiled: September 25, 2017Date of Patent: February 15, 2022Assignee: HARROGATE IMPLANT INNOVATIONS LTDInventors: Tim Doswell, Christopher Egan, Stephen Campbell
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Publication number: 20210028448Abstract: Provided is an improved method for forming a coated lithium ion cathode materials specifically for use in a battery. The method comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor and a coating metal is added to the oxide precursor. The oxide precursor is heated to form the coated lithium ion cathode material.Type: ApplicationFiled: April 15, 2019Publication date: January 28, 2021Inventors: Stephen Campbell, Elahe Talaie
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Publication number: 20190223987Abstract: There is described a dental prosthesis for forming a friction fit attachment to a dental implant or dental connector. The prosthesis comprises a release device comprising a release member that is movable relative to the prosthesis from a first position to a second position. When the release member is in the first position the release device is not operable to impart a separating force to a friction fit attachment between the implant or connector and the prosthesis and when the release member is in the second position the release device is operable to impart a separating force to a friction fit attachment between the implant or connector and the prosthesis.Type: ApplicationFiled: September 25, 2017Publication date: July 25, 2019Inventors: Tim Doswell, Christopher Egan, Stephen Campbell
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Publication number: 20170222598Abstract: A portable modular shelter apparatus comprises a base, a roof, a plurality of wall elements, a plurality of corner elements, a photovoltaic solar collector, electrical circuit componentry and a utility panel. The base defines a storage compartment. The apparatus is configurable from a disassembled transport condition into an assembled condition, in which the base, roof, walls and corners are configured to releasably interlock to form a rigid shelter having a solar powered electricity supply circuit.Type: ApplicationFiled: September 22, 2015Publication date: August 3, 2017Inventor: Stephen Campbell
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Publication number: 20110318662Abstract: The present disclosure relates to a catalyst including platinum phosphide having a cubic structure, a method of making the catalyst, and a fuel cell utilizing the catalyst. The present disclosure also relates to method of making electrical power utilizing a PEMFC incorporating the catalyst. Also disclosed herein is a catalyst including a platinum complex wherein platinum is complexed with a nonmetal or metalloid. The catalyst with the platinum complex can exhibit good electro-chemically active properties.Type: ApplicationFiled: March 12, 2010Publication date: December 29, 2011Applicants: FORD MOTOR COMPANY, DAIMLER AGInventors: Natalia Kremliakova, Scott McDermid, Stephen Campbell
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Patent number: 8007220Abstract: A wheelchair lifting bay comprising base means, a lifting platform, lifting means and pivot means, in which the lifting platform is connected to the base means by the pivot means, in which the lifting platform comprises a bottom wall and a back wall, in which the pivot means is disposed rearward of said back wall and is spaced apart from it, in which the lifting means is mounted between the base means and the lifting platform forward of the pivot means, and in which the lifting means rotates the lifting platform about the pivot means in use such that the back wall follows a circumferential path about the pivot means.Type: GrantFiled: March 13, 2006Date of Patent: August 30, 2011Inventors: David Vandyke, Philip Wickens, Stephen Campbell
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Publication number: 20080014069Abstract: A wheelchair lifting bay comprising base means, a lifting platform, lifting means and pivot means, in which the lifting platform is connected to the base means by the pivot means, in which the lifting platform comprises a bottom wall and a back wall, in which the pivot means is disposed rearward of said back wall and is spaced apart from It, in which the lifting means is mounted between the base means and the lifting platform forward of the pivot means, and in which the lifting means rotates the lifting platform about the pivot means in use such that the back wall follows a circumferential path about the pivot means.Type: ApplicationFiled: March 13, 2006Publication date: January 17, 2008Inventors: David Vandyke, Philip Wickens, Stephen Campbell
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Publication number: 20080003474Abstract: Liquid cooled systems having coolant circulation loops must often operate in below freezing conditions. For instance, in various applications certain fuel cell systems must be able to tolerate repeated shutdown and storage in below freezing conditions. Conventional glycol-based coolants typically used for internal combustion engines are generally unsuitable for use in the associated fuel cell cooling subsystems due to the presence of additives and/or inhibitors which are normally included to deal with problems relating to decomposition of the glycol. With additives or inhibitors present, the coolant conductivity can be sufficiently high as to result in electrical shorting or corrosion problems. However, provided the purity of the coolant is maintained, a pure glycol and water coolant mixture may be used as a fuel cell system coolant to obtain suitable antifreeze protection. Adequate purity can be maintained by including an ion exchange resin unit in the cooling subsystem.Type: ApplicationFiled: June 28, 2007Publication date: January 3, 2008Inventors: Jean St-Pierre, Stephen Campbell, Mark Watson, Michael Sexsmith
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Publication number: 20070264515Abstract: A bonded structure including one or more substrates bonded together with a tackified amorphous poly-alpha-olefin adhesive composition. One method of making such a bonded structure is carried out by applying a tackified amorphous poly-alpha-olefin adhesive composition to one or more substrates at a temperature of about 170 degrees Celsius or lower, and joining the substrates to themselves or to one another. The bonded structure has a dynamic peel strength between about 400 and about 1000 grams per 25 millimeters. The bonding efficiency of the bonded structure renders the bonded structure suitable for incorporation into a variety of articles, including personal care products, health/medical products, and household/industrial product, for example.Type: ApplicationFiled: July 18, 2007Publication date: November 15, 2007Inventors: Stephen Campbell, Daniel Hesse, Richard Schulz, Mark Jung, Richard Hansen, Cristian Neculescu, Sandra Rogers, Violet Grube, Rhiannon Thoresen, Thomas Killian, Jonathan Rice, Palani Raj Wallajapet, Courtney Shea, Jason Fairbanks, Prasad Potnis, Randall Palmer
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Publication number: 20070142801Abstract: A polyolefin-based elastic hot melt adhesive composition having oil resistance, creep resistance and excellent bond strength is provided. The adhesive composition is useful in elastic laminates used in personal care absorbent articles and other garments.Type: ApplicationFiled: December 15, 2005Publication date: June 21, 2007Inventors: Peiguang Zhou, Xiaomin Zhang, Stephen Campbell
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Publication number: 20070128499Abstract: A catalyst for a fuel cell comprising at least one of a metal and a non-metallic compound dispersed on a catalyst support, the catalyst support comprising at least one transition metal oxide doped with at least one trivalent transition metal, pentavalent transition metal, or hexavalent transition metal.Type: ApplicationFiled: November 16, 2006Publication date: June 7, 2007Inventors: Stephen Campbell, Harmeet Chhina
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Publication number: 20070082808Abstract: Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuxSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous synthetic pathway to this catalyst is also presented. Using the same aqueous methodology, ORR catalysts can be prepared where Ru is replaced by Mo, Fe, Co, Cr, Ni and/or W. Similarly Se can be replaced by S.Type: ApplicationFiled: September 20, 2006Publication date: April 12, 2007Inventor: Stephen Campbell
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Publication number: 20070037042Abstract: In a solid polymer fuel cell series, various circumstances can result in a fuel cell being driven into voltage reversal. For instance, cell voltage reversal can occur if that cell receives an inadequate supply of fuel. In order to pass current, reactions other than fuel oxidation can take place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter can result in significant degradation of the anode, particularly if the anode employs a carbon black supported catalyst. Such fuel cells can be made substantially more tolerant to cell reversal by using certain anodes employing both a higher catalyst loading or coverage on a corrosion-resistant support and by incorporating, in addition to the typical electrocatalyst for promoting fuel oxidation, certain unsupported catalyst compositions to promote the water electrolysis reaction.Type: ApplicationFiled: August 14, 2006Publication date: February 15, 2007Inventors: Siyu Ye, Paul Beattie, Stephen Campbell, David Wilkinson, Brian Theobald, David Thompsett
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Publication number: 20060142445Abstract: An adhesive composition comprises at least a binder polymer and a water-soluble plasticizer. The binder polymer may be present in a range of about 10% to about 60% by weight of the adhesive composition, and the plasticizer may be present in the range of about 5% to about 85% by weight of the adhesive composition, such as in the range of about 40% to about 80% by weight. In some aspects, the adhesive also comprises less than 10% by weight highly-volatile component, such as about 0% to about 5% by weight. The adhesive composition can be utilized in a variety of articles, including personal care articles, health/medical articles, and household/industrial articles.Type: ApplicationFiled: December 29, 2004Publication date: June 29, 2006Inventors: Dave Soerens, Stephen Campbell, Jisheng Shen, David Koenig
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Publication number: 20050282061Abstract: Corrosion of the carbon catalyst support may occur at both the anode and cathode catalyst layers within an electrochemical fuel cell. Such corrosion may lead to reduced performance and/or decreased lifetimes of the fuel cell. Nevertheless, carbon supports have many desirable properties as catalyst supports including high surface area, high electrical conductivity, good porosity and density. To reduce or eliminate corrosion of the carbon catalyst support, the carbon support may have a metal surface treatment and, in particular, a metal carbide surface treatment. Suitable metal carbides include titanium, tungsten and molybdenum. In this manner, the metal carbide surface treatment protects the underlying carbon support from corrosion while maintaining the desirable characteristics of the carbon support.Type: ApplicationFiled: June 22, 2004Publication date: December 22, 2005Inventor: Stephen Campbell
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Publication number: 20050221162Abstract: Corrosion at the cathode catalyst may be a serious problem compromising fuel cell lifetimes. However in providing for increased corrosion resistance, an expected trade-off may occur regarding fuel cell performance. TKK (Tanaka Kikenzoku Kogyo) has solved this problem by providing both increased corrosion resistance with no concomitant loss in performance with their catalysts TEC50EA10 and TEC50BA10. An alternative to the TKK catalysts is to use an admixture of platinum black and supported catalyst and in particular, an admixture comprising 30-40% by weight platinum black and 60-70% by weight supported catalyst.Type: ApplicationFiled: April 1, 2004Publication date: October 6, 2005Inventors: Stephen Campbell, Michael Lauritzen, Ping He, Paul Beattie, Siyu Ye
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Publication number: 20050095383Abstract: A bonded structure including one or more substrates bonded together with a tackified amorphous poly-alpha-olefin adhesive composition. One method of making such a bonded structure is carried out by applying a tackified amorphous poly-alpha-olefin adhesive composition to one or more substrates at a temperature of about 170 degrees Celsius or lower, and joining the substrates to themselves or to one another. The bonded structure has a dynamic peel strength between about 400 and about 1000 grams per 25 millimeters. The bonding efficiency of the bonded structure renders the bonded structure suitable for incorporation into a variety of articles, including personal care products, health/medical products, and household/industrial product, for example.Type: ApplicationFiled: November 4, 2003Publication date: May 5, 2005Inventors: Stephen Campbell, Daniel Hesse, Richard Schulz, Mark Jung, Richard Hansen, Cristian Neculescu, Sandra Rogers, Violet Grube, Rhiannon Thoresen, Thomas Killian, Jonathan Rice, Palani Raj Wallajapet, Courtney Shea, Jason Fairbanks, Prasad Potnis, Randall Palmer