Patents by Inventor Richard A. Leighton
Richard A. Leighton 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: 20210112976Abstract: A vanity assembly includes at least one vertically extending bracket having a rear surface adapted to engage the wall. A plurality of horizontally extending rails are coupled to the bracket, with the rails disposed forwardly of the rear surface of the bracket. A plurality of clips are coupled to the plurality of rails. In various embodiments, components such as front panels may be coupled to the clips. Other components such as front aprons and end panels may be coupled to the brackets. Locks may be provided to secure at least one of the front panels to the assembly. Various systems and methods of assembly and use are also provided.Type: ApplicationFiled: October 20, 2019Publication date: April 22, 2021Inventor: Richard Leighton Steen
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Patent number: 10979461Abstract: Data security may be automatically evaluated and adjusted using machine learning and/or satisfiability modulo theories (SMT). In various examples, a machine learning model(s) may be trained using training data that includes samples of customer data labeled with different types of data corresponding to different sensitivity levels of the samples of the customer data. Once trained, this trained machine learning model(s) can be used to classify data that is, or is requested to be, stored in a storage container. A SMT solver(s) may then evaluate the sufficiency of the existing data security (e.g., an existing access policy) of the storage container. Based on the result of the SMT solver's data security evaluation, an action(s) may be taken, such as a remedial action (e.g., adjusting data security of the storage container), a notification action (e.g., sending an alert about the data security deficiency), or the like.Type: GrantFiled: March 1, 2018Date of Patent: April 13, 2021Assignee: Amazon Technologies, Inc.Inventors: Michael Jerry Cervantez, Sheila Mary Soulia, Russell Richard Leighton, Matthew R. Evans
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Patent number: 10142226Abstract: A forwarding engine of a fleet of forwarding engines forwards packets received from outside a provider network via a direct physical link to a resource within the provider network. A virtual router of a fleet of virtual routers obtains routing metadata from a client-side networking device outside the provider network via a routing information exchange protocol and transmits the routing metadata to the forwarding engine, which uses the metadata to forward the packets. In response to a first trigger, the number of forwarding engines in the fleet is modified. In response to a second trigger, the number of virtual routers in the fleet is modified.Type: GrantFiled: May 24, 2017Date of Patent: November 27, 2018Assignee: Amazon Technologies, Inc.Inventors: Yiwen Wu, Bashuman Deb, Russell Richard Leighton, Mark Edward Stalzer
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Patent number: 9712386Abstract: A connectivity manager (CM) of a provider network establishes a plurality of ERGs (edge resource groups), each comprising at least an edge router and a network marker translation agent (NMTA). The CM selects a particular ERG to be used for network traffic between a first set of resources of a virtual computing service of the provider network and a second set of resources outside the provider network. To enable connectivity between the first and second set of resources, the CM initiate propagation of (a) routing metadata to an edge router of the particular ERG and/or (b) a network marker mapping entry to an NMTA of the particular ERG.Type: GrantFiled: February 18, 2015Date of Patent: July 18, 2017Assignee: Amazon Technologies, Inc.Inventors: Po-Chun Chen, Russell Richard Leighton, Wesley Douglas Doonan, Kevin Christopher Miller
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Patent number: 9234955Abstract: A rod antenna and antenna circuit are described which make use of negative feedback to reduce the Q of the antenna, but which also makes use of a different coil tapping arrangement to significantly reduce electric field susceptibility on the detected signal from the main coil as well as different biasing arrangements to reduce noise. More particularly, in some embodiments of the invention the main detector coil of the antenna has a centre tap that is AC grounded with signal taps then being taken from the opposite ends of the main coil, and being respectively fed to the inputs of a differential amplifier. The output of the differential amplifier is then fed to the magnetic circuit of the rod antenna via a second inductor winding that is magnetically coupled to the resonance circuit of the main antenna coil.Type: GrantFiled: June 29, 2012Date of Patent: January 12, 2016Assignee: Roke Manor Research LimitedInventor: Graham Richard Leighton
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Patent number: 8654402Abstract: A device, system, and method for reducing the pitch-to-pitch variation of color using pitch-based linearization of halftone screens are presented. A selection of images is printed at different pitches, and each image is measured and tracked with its pitch. Pitch-based TRCs are constructed using patches, which may be scheduled during print run or during machine diagnostic process and halftone dots are constructed and uploaded in the image path for each pitch. The updated dots are then used to produce a linearized halftone image for transfer to a print surface which results in improved color balance.Type: GrantFiled: May 27, 2009Date of Patent: February 18, 2014Assignee: Xerox CorporationInventors: Lalit Keshav Mestha, Richard Leighton Howe, Raja Bala
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Publication number: 20130002512Abstract: A rod antenna and antenna circuit are described which make use of negative feedback to reduce the Q of the antenna, but which also makes use of a different coil tapping arrangement to significantly reduce electric field susceptibility on the detected signal from the main coil as well as different biasing arrangements to reduce noise. More particularly, in some embodiments of the invention the main detector coil of the antenna has a centre tap that is AC grounded with signal taps then being taken from the opposite ends of the main coil, and being respectively fed to the inputs of a differential amplifier. The output of the differential amplifier is then fed to the magnetic circuit of the rod antenna via a second inductor winding that is magnetically coupled to the resonance circuit of the main antenna coil.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Applicant: ROKE MANOR RESEARCH LIMITEDInventor: Graham Richard Leighton
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Publication number: 20090296156Abstract: A device, system, and method for reducing the pitch-to-pitch variation of color using pitch-based linearization of halftone screens are presented. A selection of images is printed at different pitches, and each image is measured and tracked with its pitch. Pitch-based TRCs are constructed using patches, which may be scheduled during print run or during machine diagnostic process and halftone dots are constructed and uploaded in the image path for each pitch. The updated dots are then used to produce a linearized halftone image for transfer to a print surface which results in improved color balance.Type: ApplicationFiled: May 27, 2009Publication date: December 3, 2009Applicant: Xerox CorporationInventors: Lalit Keshav Mestha, Richard Leighton Howe, Raja Bala
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Patent number: 3985578Abstract: In accordance with a preferred embodiment of this invention, the polarization or overvoltage of a carbon black-based air cathode is significantly reduced by adding from 1 to 5 percent, by weight based on the total carbon composition, of carbon derived from poly(vinylidene chloride) (hereinafter PVdC) to the carbon black, prior to the formation of the electrode. To accomplish this, the porous and particulate carbon black is initially blended with a solution of PVdC; the resulting blend is dried, and then dehydrochlorinated and baked at a temperature in the range of from 900.degree. C. to 1,100.degree. C. The electrocatalytic layer of the cathode is then prepared from this tailored carbon substrate.FIELD OF THE INVENTIONThis invention relates to a carbon-based substrate for electrodes used in fuel cells which operate at ambient temperatures and wherein the electrode separates a liquid electrolyte from a gaseous reactant.Type: GrantFiled: June 27, 1975Date of Patent: October 12, 1976Assignee: General Motors CorporationInventors: Romeo Richard Witherspoon, Richard Leighton Adams
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Patent number: D327470Type: GrantFiled: May 12, 1989Date of Patent: June 30, 1992Assignee: International Business Machines CorporationInventors: Myron F. Davis, Richard A. Leighton
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Patent number: D864253Type: GrantFiled: February 28, 2018Date of Patent: October 22, 2019Assignee: MANGAR INTERNATIONAL (HOLDINGS) LIMITEDInventors: William James Thorne, Perry Liam Brown, Richard Leighton Barnes, Philip Warren, Mark Davies