Patents by Inventor David A. Porter

David A. Porter 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).

  • Hidden decking fastener and related method of fastening deck boards
    Patent number: 7984599
    Abstract: Fasteners, and related methods, for securing deck boards to a support joist are disclosed. In one embodiment, the fastener comprises a base portion and a cap portion on the base portion. In some embodiments, the base portion includes an opening formed therethrough for receiving a securing device, and legs extending from an upper surface of the base portion and between edges of adjacent deck boards to define a spacing between the adjacent deck boards. The cap portion can include an opening for receiving the securing device therethrough to secure the fastener to the support joist. In addition, the cap portion may include legs extending around the base portion and comprising teeth extending therefrom that bite into grooves formed in the edges of the adjacent deck boards when the securing device secures the fastener to the support joist, thereby securing the deck boards to the support joist.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: July 26, 2011
    Assignee: Building Materials Investment Corporation
    Inventors: Denby Snell, David DeRogatis, Steve Kiso, Scott Rega, David Porter, Scott Nowatzki, Dave Fancher, Greg Zimmerman
  • MAGNETIC MICROBUBBLES, METHODS OF PREPARING THEM AND THEIR USES
    Publication number: 20110172486
    Abstract: The invention provides a method of preparing a suspension of microbubbles for use in a carrier liquid, wherein the microbubbles have a gas core and a liquid shell, said liquid shell comprising magnetic nanoparticles, and wherein the microbubbles satisfy the following conditions: (i) the force due to buoyancy (FBW) of the microbubble in the carrier liquid is greater than the weight (W) of the microbubble; (ii) the magnetic force (FM) on the microbubble due to a magnetic field applied to the carrier liquid is greater than the combined weight (W) and force due to buoyancy (FBW) of the microbubble; (iii) said magnetic force (FM) on the microbubble is greater than the force due to viscous drag (FD) on the microbubble due to flow of the carrier liquid; and (iv) the scattering cross section (?scat) of the microbubble to ultrasound allows the microbubble to be detectable and rupturable on exposure to ultrasound.
    Type: Application
    Filed: June 26, 2009
    Publication date: July 14, 2011
    Inventors: Quentin Andrew Pankhurst, Eleanor Phoebe Jane Stride, Colin David Porter, Ana García Prieto
  • Coalescing filter element
    Patent number: 7964010
    Abstract: A coalescing filter element for removing liquid droplets from a gas stream comprises a wall which is made of a coalescing filtration material and which defines a hollow space within it. An end cap at one end of the element has a port in it through which gas is supplied to the hollow space to flow through the wall of the filtration material. The end cap has a peripheral portion which engages the element wall and a tube which extends into the hollow space defined by the element wall, so that the port in the end cap comprises an inner opening defined by the tube and at least one peripheral opening located between the tube and the peripheral portion of the end cap. The tube extends beyond the peripheral opening(s) so as to deliver gas to a region of the element wall which is remote from the end cap.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: June 21, 2011
    Assignee: Domnick Hunter Limited
    Inventors: Brian Lane, David Porter
  • Temperature compensation in memory devices and systems
    Patent number: 7948793
    Abstract: Devices, methods, and systems for temperature compensation in memory devices, such as resistance variable memory, among other types of memory are included. A memory device can include a table with an output that is used to create a multiplication factor for a current to compensate for temperature changes in the memory device, where the output depends on an operating temperature of the memory device and a difference in the current between a highest specified operating temperature and a lowest specified operating temperature of the memory device.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: May 24, 2011
    Assignee: Micron Technology, Inc.
    Inventors: John David Porter, Jennifer E. Taylor
  • Method and apparatus for adaptive services networking
    Patent number: 7877511
    Abstract: Methods and apparatus provide an adaptive load balancer that presents a virtual data system to client computer systems. The virtual data system provides access to an aggregated set of data, such as files or web service objects, available from a plurality of server data systems respectively operating within a plurality of server computer systems. The adaptive load balancer receives a client data access transaction from a client computer system that specifies a data access operation to be performed relative to the virtual data system presented to the client computer system. The adaptive load balancer processes the client data access transaction in relation to metadata associated with the virtual data system to provide access to the file or service object within a server computer system, or to access the metadata.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: January 25, 2011
    Assignee: F5 Networks, Inc.
    Inventors: Michael A. Berger, Robert T. Curley, Daniel J. Dietterich, JC Ferguson, Michael J. Homberg, Benjamin E. McCann, Jonathan C. Nicklin, David Porter, Suchi Raman, Craig S. Rasmussen, Michael J. Soha, Thomas J. Teixeira, Bryan T. Whitmore, Leonard F. Wisniewski, Chin-Cheng Wu
  • Hidden decking fastener and related method of fastening deck boards
    Publication number: 20100257806
    Abstract: Fasteners, and related methods, for securing deck boards to a support joist are disclosed. In one embodiment, the fastener comprises a base portion and a cap portion on the base portion. In some embodiments, the base portion includes an opening formed therethrough for receiving a securing device, and legs extending from an upper surface of the base portion and between edges of adjacent deck boards to define a spacing between the adjacent deck boards. The cap portion can include an opening for receiving the securing device therethrough to secure the fastener to the support joist. In addition, the cap portion may include legs extending around the base portion and comprising teeth extending therefrom that bite into grooves formed in the edges of the adjacent deck boards when the securing device secures the fastener to the support joist, thereby securing the deck boards to the support joist.
    Type: Application
    Filed: August 22, 2007
    Publication date: October 14, 2010
    Applicant: ELK PREMIUM BUILDING PRODUCTS, INC.
    Inventors: Denby Snell, David DeRogatis, Steve Kiso, Scott Rega, David Porter, Scott Nowatski, Dave Fancher, Greg Zimmerman
  • Predistorting of contention signals
    Patent number: 7787531
    Abstract: In a fixed wireless access (FWA) communications system comprising an Access Point (501) and a plurality of Subscriber Units (502-1, 502-2 502-N) each Subscriber Unit transmits a concentration word when it wishes to obtain access to transmit data. Each Subscriber Unit (502) includes a linear precoder (517) which predistorts the contention word to compensate for the impulse response of the transmission channel between it and Access Point (501). The precoder (517) is optimized specifically for the contention word to be transmitted instead of for general data.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: August 31, 2010
    Assignee: Cambridge Broadband Networks Limited
    Inventors: John David Porter, Malcolm Paul Sellars, Stephen David Greaves
  • CXCR2 INHIBITORS
    Publication number: 20100152205
    Abstract: The present invention relates to compounds of formula (I) and the use of these compounds as pharmaceuticals, e.g. in preventing or treating a CXCR2 receptor mediated condition or disease.
    Type: Application
    Filed: November 21, 2007
    Publication date: June 17, 2010
    Inventors: Peter Hunt, David Porter, Nell John Press, Carsten Spanka, Simon James Watson
  • Phase change memory
    Patent number: 7729163
    Abstract: The present disclosure includes devices and methods for operating phase change memory cells. One or more embodiments include applying a programming signal to a phase change material of a memory cell, and decreasing a magnitude of a trailing portion of the applied programming signal successively according to a number of particular decrements. The magnitude and the duration of the number of particular decrements correspond to particular programmed values.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 1, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Pradeep Ramani, John David Porter
  • Capacitive divider sensing of memory cells
    Patent number: 7724564
    Abstract: The present disclosure includes devices and methods for sensing resistance variable memory cells. One device embodiment includes at least one resistance variable memory cell, and a capacitive divider configured to generate multiple reference levels in association with the at least one resistance variable memory cell.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: May 25, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Jennifer E. Taylor, John David Porter
  • System and method for mitigating reverse bias leakage
    Patent number: 7692975
    Abstract: The present disclosure includes devices, methods, and systems for programming memory, such as resistance variable memory. One embodiment can include an array of resistance variable memory cells, wherein the resistance variable memory cells are coupled to one or more data lines, a row decoder connected to a first side of the array, a column decoder connected to a second side of the array, wherein the second side is adjacent to the first side, a gap located adjacent to the row decoder and the column decoder, and clamp circuitry configured to control a reverse bias voltage associated with one or more unselected memory cells during a programming operation, wherein the clamp circuitry is located in the gap and is selectively coupled to the one or more data lines.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: April 6, 2010
    Assignee: Micron Technology, Inc.
    Inventor: John David Porter
  • CXCR2 inhibitors
    Publication number: 20100069407
    Abstract: The present invention relates to compounds of formula (I) and the use of these compounds as pharmaceuticals, e.g. in preventing or treating a CXCR2 receptor mediated condition or disease.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 18, 2010
    Inventors: Neil John Press, David Porter, Carsten Spanka
  • CXCR2 inhibitors
    Publication number: 20100063080
    Abstract: The present invention relates to compounds of formula (I) and the use of these compounds as pharmaceuticals, e.g. in preventing or treating a CXCR2 receptor mediated condition or disease.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 11, 2010
    Inventors: Neil John Press, Peter Hunt, David Porter, Diana Janus
  • Organic compounds
    Publication number: 20090298824
    Abstract: Compounds of formula I in free or salt form, where Y, R1, R2, R3, R4 and R5 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the CXCR2 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
    Type: Application
    Filed: January 20, 2005
    Publication date: December 3, 2009
    Inventors: Neil J. Press, David Porter, Catherine Leblanc, Clive McCarthy, Nicolas Soldermann, Lyndon N. Brown
  • Synchronization in a communication system
    Patent number: 7602811
    Abstract: A packet switched communications system and method for transmitting synchronous data from a source module (4) to a terminating module (8) over a network comprising plurality of modules (4, 5, 7, 8) interconnected via transmission links (2, 6, 9). Each module operates with a clock of nominal frequency that is not synchronized with the clocks of the other module(s) and has a single input and one or more outputs. The method includes determining the phase difference between the input clock and the output clock of each module, and transmitting the phase difference to the terminating module (8) in the network. The received accumulated phase difference at the terminating module (8) is used to lock the output clock at the terminating module to the input clock at the source module.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: October 13, 2009
    Assignee: Cambridge Broadband Limited
    Inventors: John David Porter, Benedict Russell Freeman
  • Intermodal physical security device
    Publication number: 20090217718
    Abstract: An apparatus and method for securing a trailer door is provided, the apparatus and process includes a locking apparatus having a housing containing an electronic lock responsive to a signal from a remote wireless device such as a cell phone. A pair of opposingly spaced securement members are used to attach the locking apparatus to vertical support members on the exterior of a cargo door. One of the securement members is responsive to the electronic locking mechanism to engage the support member thereby preventing opening of the trailer door.
    Type: Application
    Filed: January 15, 2009
    Publication date: September 3, 2009
    Inventor: James David Porter
  • Communication System and Method
    Publication number: 20090141649
    Abstract: In a communications system a transmitter is arranged to transmit asynchronous transfer mode (ATM) cells in which synchronous transfer mode (STM) channels are assembled. In order to minimise the bandwidth required at lease some of the ATM cells include one or more switch command(s) (12) that indicate a change in the activation state of one or more STM channels (11-0 to 11-n). The switch commands (12) and STM channels (11) fill the ATM cell from opposite ends of the cell. Activate switch commands comprise two bytes, a high byte including a pointer (18) pointing to the start of a block of STM channels (11) and a low byte that includes a pointer (19) that points to the channel within a block of STM channels (11) to which the switch command applies.
    Type: Application
    Filed: November 8, 2006
    Publication date: June 4, 2009
    Inventors: John David Porter, Richard Mark Barden
  • Metal transaction device
    Patent number: D602986
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: October 27, 2009
    Assignee: JPMorgan Chase Bank, N.A.
    Inventors: Dori K. Skelding, David Porter
  • Metal transaction device
    Patent number: D635186
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: March 29, 2011
    Assignee: JPMorgan Chase Bank, N.A.
    Inventors: Dori K. Skelding, David Porter
  • Metal transaction device
    Patent number: D643062
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 9, 2011
    Assignee: JPMorgan Chase Bank, N.A.
    Inventors: Dori K. Skelding, David Porter